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| Name |
|
Pennant No. |
|
Information |
|
Note |
| L’ACONIT (ACONITE) | | K58 | | FRENCH | | 23 |
| L’APPEL DE LA MER | | B80 | | | | 5 |
| L’ATLANTIQUE | | FY362 | | FRENCH | | 15 |
| L’AVENTURE | | 4.369 | | | | 14 |
| L’INCOMPRISE FRENCH | | H47 | | | | 18 |
| L23 | | 23L | | | | 75 |
| L23 | | 23N | | | | 76 |
| L26 | | 26L | | | | 75 |
| L26 | | 26N | | | | 76 |
| L27 | | 27L | | | | 75 |
| L27 | | 27N | | | | 76 |
| LA BELLE POULE | | 4.317 | | | | 14 |
| LA CAPRICIEUSE | | U92 | | | | 42 |
| LA COMBATANTE | | L19 | | FRENCH EX HALDON | | 26 |
| LA CORDELIERE | | H25 | | FR | | 18 |
| LA FLORE | | H63 | | FRENCH | | 18 |
| LA GRANDIERE | | A431 | | FRENCH | | 91 |
| LA HULLOISE | | B635 | | FF RIVER | | 93 |
| LA HULLOISE | | K668 | | RCN | | 23 |
| LA MALBAIE | | K273 | | RCN | | 23 |
| LA MALBAIE | | K273 | | RCN | | 23 |
| LA MALOUINE | | K46 | | F | | 23 |
| LA MELPOMENE | | H56 | | FRENCH | | 18 |
| LA MOQUEUSE | | U17 | | FRENCH | | 42 |
| LA NANTAISE | | FY360 | | FRENCH | | 15 |
| LA SALLE | | K519 | | RCN | | 23 |
| LA VALLEE | | J371 | | RCN | | 22 |
| LABRADOR | | A168 | | AG | | 2 |
| LABUAN | | K584 | | | | 23 |
| LACENNIA | | FY712 | | | | 15 |
| LACERTA/ MANXMAID | | 4.07 | | | | 14 |
| LACHINE | | J266 | | RCN | | 22 |
| LACHLAN | | K364 | | RAN | | 23 |
| LACHUTE | | K440 | | RCN | | 23 |
| LACONIA | | F42 | | AMC | | 11 |
| LADSHAM | | M2706 | | | | 31 |
| LADY BERYL | | FY100 | | | | 15 |
| LADY BLANCHE | | FY.014 | | | | 13 |
| LADY ELEANOR | | Z226 | | | | 48 |
| LADY ELSA | | FY124 | | | | 15 |
| LADY ENID | | FY547 | | | | 15 |
| LADY ESTELLE | | 4.176 | | | | 14 |
| LADY HOGARTH | | 4.89 | | | | 14 |
| LADY HOGARTH | | FY89 | | | | 15 |
| LADY MADELINE | | FY283 | | | | 15 |
| LADY OF MANN | | 4.95 | | | | 14 |
| LADY PHILOMENA | | FY148 | | | | 15 |
| LADY RODNEY | | F46 | | | | 11 |
| LADY ROSEMARY | | 4.15 | | | | 14 |
| LADY ROSEMARY | | FY253 | | | | 15 |
| LADY SHARAHZAD | | FY.015 | | | | 13 |
| LADY SOMERS | | F109 | | OBV | | 11 |
| LADY STANLEY | | 4.233 | | | | 14 |
| LADY VAGRANT | | FY.016 | | REN VRASSIE 1942 | | 13 |
| LADYBIRD | | T58 | | | | 41 |
| LADYBIRD | | A253 | | AG | | 2 |
| LAERTES | | H45 | | 1919 | | 18 |
| LAERTES | | H80 | | 1919 | | 18 |
| LAERTES | | H94 | | 1914 | | 18 |
| LAERTES | | T137 | | | | 41 |
| LAERTES | | J433 | | | | 22 |
| LAERTES | | M433 | | | | 31 |
| LAFOREY | | H03 | | 1914 | | 18 |
| LAFOREY | | F99 | | F/G | | 16 |
| LAFOREY | | G99 | | AS F99 | | 17 |
| LAGAN | | K259 | | LOST | | 23 |
| LAGAN | | K259 | | LOST | | 23 |
| LAGOS | | D44 | | 1948/66 EX R44 | | 9 |
| LAGOS | | R44 | | | | 38 |
| LAGOS | | D93 | | | | 95 |
| LAGOS | | D93 | | BPG EX R44 REN R44 | | 9 |
| LAGUNA BELLE | | 4.373 | | | | 14 |
| LAGUNA BELLE | | J112 | | | | 22 |
| LAHORE | | T253 | | RIN | | 41 |
| LAIRD’S ISLE | | 4.21 | | | | 14 |
| LAKELAND | | Y3.8 | | | | 53 |
| LAL | | T299 | | RIN | | 41 |
| LALESTON | | M1158 | | MS | | 31 |
| LAMBOURNE | | K268 | | | | 23 |
| LAMBOURNE | | K268 | | | | 23 |
| LAMBRIDGE | | X15 | | DECOY | | 44 |
| LAMBRIDGE | | X15 | | DECOY | | 45 |
| LAMERTON | | F88 | | 1940-53 | | 12 |
| LAMERTON | | L88 | | | | 26 |
| LAMLASH | | A208 | | AG | | 2 |
| LAMONT | | 4.42 | | | | 14 |
| LAMONT | | B211 | | LSI(L) | | 93 |
| LANAKIA | | Z253 | | | | 48 |
| LANARK | | K669 | | RCN | | 23 |
| LANCASHIRE | | Y4.3 | | | | 54 |
| LANCASHIRE | | B402 | | ACCOM SHIP | | 93 |
| LANCASHIRE | | B492 | | LSI(L) | | 93 |
| LANCASTER | | G05 | | | | 17 |
| LANCASTER | | F229 | | FF | | 12 |
| LANCASTER CASTLE | | F691 | | | | 12 |
| LANCASTER CASTLE | | K691 | | | | 23 |
| LANCE | | H23 | | 1914 | | 18 |
| LANCE | | H46 | | 1918 | | 18 |
| LANCE | | H96 | | 1919 | | 18 |
| LANCE | | F87 | | F/G | | 16 |
| LANCE | | G87 | | LOST | | 17 |
| LANCER | | T335 | | | | 41 |
| LANDFALL | | FY30 | | | | 15 |
| LANDFALL | | Z97 | | | | 48 |
| LANDGUARD | | Y56 | | EX US | | 47 |
| LANDRAIL | | H47 | | 1918 | | 18 |
| LANDRAIL | | H54 | | 1914 | | 18 |
| LANDRAIL | | H82 | | 1919 | | 18 |
| LANGLAATE | | T41 | | SANF | | 41 |
| LANTAKA | | W102 | | | | 43 |
| LANTAN | | J208 | | | | 22 |
| LANTON | | M1159 | | | | 31 |
| LAOMEDON | | Z243 | | | | 48 |
| LAPAGERIA | | 4.315 | | | | 14 |
| LAPWING | | FY818 | | | | 15 |
| LAPWING | | H09 | | 1919/21 | | 18 |
| LAPWING | | H48 | | 1918/19 | | 18 |
| LAPWING | | H56 | | 1914/18 | | 18 |
| LAPWING | | U62 | | LOST | | 42 |
| LARCH | | T96 | | | | 41 |
| LARCH LAKE | | J489 | | RCN | | 22 |
| LARCHOL | | A137 | | AOR | | 2 |
| LARCHOL | | X37 | | | | 45 |
| LARD ASHFIELD | | FY694 | | | | 15 |
| LARGO BAY | | F423 | | | | 12 |
| LARGO BAY | | K423 | | | | 23 |
| LARGS | | F43 | | EX CH PLUMIER LSHQ | | 11 |
| LARGS BAY | | L3006 | | AOR MOT REN EMPIRE GANNET 1956 BU 1968 | | 27 |
| LARIAT | | W17 | | | | 43 |
| LARIAT | | B454 | | RESC TUG | | 93 |
| LARK | | H00 | | 1919 | | 18 |
| LARK | | H34 | | 1914 | | 18 |
| LARK | | H49 | | 1918 | | 18 |
| LARK | | U11 | | LOST | | 42 |
| LARKSPUR | | K82 | | TO USA AS FURY | | 23 |
| LARKSPUR | | M82 | | | | 30 |
| LARNE | | H50 | | 1918 | | 18 |
| LARNE | | H57 | | 1914 | | 18 |
| LARNE | | H69 | | 1919 | | 18 |
| LARNE | | F63 | | | | 16 |
| LARNE II | | J274 | | | | 22 |
| LARSEN | | T05 | | SANF | | 41 |
| LARSEN | | T505 | | | | 41 |
| LARWOOD | | FY172 | | LOST | | 15 |
| LASHAM | | M2636 | | | | 31 |
| LASSO | | T76 | | | | 41 |
| LASSO | | Z76 | | | | 48 |
| LASSOO | | F41 | | 1915 | | 12 |
| LASSOO | | G01 | | | | 17 |
| LATIMER | | Z267 | | | | 48 |
| LATONA | | 176 | | | | 20 |
| LATONA | | N76 | | | | 34 |
| LATONA LOST | | M76 | | | | 29 |
| LATONA LOST | | M76 | | | | 30 |
| LATROBE | | J234 | | RAN | | 22 |
| LAUDERDALE | | L95 | | | | 26 |
| LAUNCESTON | | J179 | | RAN | | 22 |
| LAUNCESTON | | B246 | | RAN MSF BATHURST | | 93 |
| LAUNCESTON CASTLE | | F397 | | | | 12 |
| LAUNCESTON CASTLE | | K397 | | | | 23 |
| LAUREL | | 4.417 | | | | 14 |
| LAUREL | | H51 | | 1918 | | 18 |
| LAUREL | | H91 | | 1914 | | 18 |
| LAUREL | | T23 | | | | 41 |
| LAURENTIC | | F51 | | AMC | | 11 |
| LAUZON | | K371 | | RCN | | 23 |
| LAUZON | | K671 | | RCN | | 23 |
| LAVENDER | | K60 | | | | 23 |
| LAVENDER | | M60 | | | | 30 |
| LAVEROCK | | H52 | | 1918 | | 18 |
| LAVEROCK | | H53 | | | | 18 |
| LAVEROCK | | G93 | | 1919 | | 17 |
| LAVEROCK | | Z240 | | | | 48 |
| LAWFORD | | H06 | | 1914 | | 18 |
| LAWFORD | | K514 | | | | 23 |
| LAWRENCE | | U83 | | | | 42 |
| LAWRENCE | | L83 | | RIN | | 25 |
| LAWSON | | K516 | | | | 23 |
| LAXMI RIN | | FY.090 | | | | 13 |
| LAYBURN | | P191 | | | | 37 |
| LAYMOOR | | P190 | | | | 37 |
| LE DINAN | | B69 | | | | 5 |
| LE FANTASQUE | | H52 | | FRENCH | | 18 |
| LE GLORIEUX | | P17 | | FRENCH | | 80 |
| LE MALIN | | H22 | | FRENCH | | 18 |
| LE TERRIBLE | | H27 | | FRENCH | | 18 |
| LE TIGER | | FY243 | | | | 15 |
| LE TRIOMPHANT | | H02 | | FRENCH | | 18 |
| LEAMINGTON | | G19 | | USSR ZGUCHIJ | | 17 |
| LEANDER | | 75 | | | | 1 |
| LEANDER | | C75 | | 1931-49 | | 7 |
| LEANDER | | F109 | | | | 12 |
| LEANDER | | C2 | | RNZN | | 94 |
| LEASIDE | | K460 | | RCN | | 23 |
| LEASIDE | | K492 | | RCN | | 23 |
| LECHLADE | | A211 | | AG | | 2 |
| LEDA | | N93 | | | | 33 |
| LEDA | | J93 | | LOST | | 22 |
| LEDBURY | | F190 | | | | 12 |
| LEDBURY | | L90 | | | | 26 |
| LEDBURY | | M30 | | MHSC | | 31 |
| LEEDS | | G27 | | | | 17 |
| LEEDS CASTLE | | F384 | | | | 12 |
| LEEDS CASTLE | | K384 | | | | 23 |
| LEEDS CASTLE | | P258 | | PB | | 37 |
| LEEDS UNITED | | FY196 | | | | 15 |
| LEEWARD | | FY31 | | | | 15 |
| LEEWARD | | Z93 | | | | 48 |
| LEGION | | H54 | | 1918 | | 18 |
| LEGION | | H79 | | 1914 | | 18 |
| LEGION | | F74 | | F/G | | 16 |
| LEGION | | G74 | | LOST WAS F74 | | 17 |
| LEGION C1914 | | F94 | | | | 12 |
| LEICESTER CITY | | FY223 | | | | 15 |
| LEITH | | L36 | | | | 25 |
| LEITH | | U36 | | | | 42 |
| LENNOX | | H55 | | 1918 | | 18 |
| LENNOX | | H95 | | 1914 | | 18 |
| LENNOX | | M276 | | | | 31 |
| LENNOX II | | J276 | | | | 22 |
| LEO | | FY859 | | | | 15 |
| LEONADIS | | H20 | | 1914 | | 18 |
| LEONADIS | | H56 | | 1918 | | 18 |
| LEONIAN | | Z197 | | | | 48 |
| LEONIAN | | B411 | | BOOM CARRIER | | 93 |
| LEONORA | | FY819 | | | | 15 |
| LEOPARD | | D50 | | 1918 EX D61 REN H06 | | 9 |
| LEOPARD | | D61 | | 1915/18 EX D75 REN D50 | | 9 |
| LEOPARD | | D75 | | 1914/15 REN D61 | | 9 |
| LEOPARD | | F14 | | | | 12 |
| LEOPARD | | H98 | | FRENCH | | 18 |
| LEOVILLE | | U98 | | FRENCH | | 42 |
| LEPHRETO | | FY519 | | | | 15 |
| LEPHRETO | | Y7.17 | | | | 46 |
| LESLEY | | A172 | | AG | | 2 |
| LETHBRIDGE | | K160 | | RCN | | 23 |
| LETITIA | | F16 | | AMC | | 11 |
| LETITIA HOSP | | Y4.66 | | | | 54 |
| LETTERSTON | | M1160 | | | | 31 |
| LEVANTER | | FY701 | | EX JELOY | | 15 |
| LEVEN | | D51 | | 1918/20 EX D62 | | 9 |
| LEVEN | | D62 | | 1915/18 EX P33 REN D51 | | 9 |
| LEVEN | | P33 | | 1914 | | 36 |
| LEVERTON | | M1161 | | | | 31 |
| LEVIATHAN | | R97 | | | | 39 |
| LEVIATHAN | | 97 | | NOT COMPLETED | | 1 |
| LEVIS | | K115 | | RCN LOST | | 23 |
| LEVIS | | K400 | | RCN | | 23 |
| LEVIS | | B636 | | FF RIVER | | 93 |
| LEWES | | G68 | | | | 17 |
| LEWES | | B496 | | TARGET SHIP | | 93 |
| LEWISTON | | M1208 | | MS | | 31 |
| LEXA | | FY.061 | | | | 13 |
| LEYLAND | | FY103 | | LOST | | 15 |
| LIBERATOR | | FY1650 | | | | 15 |
| LIBERIA | | FY1826 | | | | 15 |
| LIBERTY | | FY957 | | | | 15 |
| LIBERTY | | H57 | | 1918 | | 18 |
| LIBERTY | | H81 | | 1914 | | 18 |
| LIBERTY | | H99 | | 1919 | | 18 |
| LIBERTY | | J391 | | | | 22 |
| LIBERTY | | B257 | | MSF ALGERINE | | 93 |
| LIBRA | | FY867 | | DUTCH | | 15 |
| LICHEN | | FY940 | | | | 15 |
| LIDDESDALE | | L100 | | | | 26 |
| LIDDOCK | | FY798 | | | | 15 |
| LIFFEY | | D52 | | 1918/19 EX D62 | | 9 |
| LIFFEY | | T81 | | | | 41 |
| LIFFEY | | D24 | | 1915/18 EX N07 REN D52 | | 9 |
| LIFFEY | | N07 | | 1914 | | 32 |
| LIGHTFOOT | | J288 | | | | 22 |
| LIGHTNING | | D98 | | 1940/43 REN F55 | | 9 |
| LIGHTNING | | F55 | | F/G | | 16 |
| LIGHTNING | | G55 | | LOST | | 17 |
| LIGHTNING | | N23 | | 1914 | | 32 |
| LIGNY | | FY1765 | | | | 15 |
| LILAC | | T26 | | | | 41 |
| LILAH | | A174 | | AG | | 2 |
| LIMBOURNE | | L57 | | LOST | | 26 |
| LIMOL | | A120 | | AOR | | 2 |
| LINARIA | | K282 | | | | 23 |
| LINARIA | | K282 | | | | 23 |
| LINCOLN | | F99 | | | | 12 |
| LINCOLN | | G42 | | NORWAY | | 17 |
| LINCOLN | | G42 | | USSR ORUZNYI | | 17 |
| LINCOLNSHIRE | | FY222 | | | | 15 |
| LINDESNES | | B01 | | | | 5 |
| LINDISFARNE | | P44 | | | | 37 |
| LINDISFARNE | | DV11 | | | | 10 |
| LINDISFARNE | | T361 | | DV 11 | | 41 |
| LINDISFARNE | | P300 | | PP | | 37 |
| LINDSAY | | K338 | | RCN | | 23 |
| LING | | K205 | | CANC | | 23 |
| LING | | K205 | | CANC | | 23 |
| LINGAY | | J423 | | | | 22 |
| LINGAY | | T423 | | | | 41 |
| LINNET | | H43 | | 1914 | | 18 |
| LINNET | | H53 | | 1919 | | 18 |
| LINNET | | H59 | | 1919 | | 18 |
| LINNET | | 169 | | | | 20 |
| LINNET | | M69 | | | | 29 |
| LINNET | | M69 | | | | 31 |
| LINNET | | M69 | | | | 30 |
| LION | | 34 | | | | 1 |
| LION | | 127 | | 1939 CANC | | 19 |
| LION | | 27 | | CANC | | 1 |
| LION | | C34 | | EX DEFENCE 1944-75 | | 7 |
| LIONESS | | J377 | | | | 22 |
| LIONESS | | M377 | | | | 31 |
| LISCOMB | | T285 | | RCN | | 41 |
| LISMORE | | J145 | | RAN | | 22 |
| LISMORE | | B247 | | RAN MSF BATHURST | | 93 |
| LISTOWEL | | K439 | | RCN CANC | | 23 |
| LITHGOW | | J206 | | RAN | | 22 |
| LITTLESHAM | | M2707 | | | | 31 |
| LIVELY | | D83 | | 1915/18 EX D91 REN D53 | | 9 |
| LIVELY | | D91 | | 1914/15 REN D83 | | 9 |
| LIVELY | | F40 | | F/G | | 16 |
| LIVELY | | G40 | | LOST WAS F40 | | 17 |
| LIVERPOOL | | 11 | | | | 1 |
| LIVERPOOL | | D92 | | 1980/ | | 9 |
| LIVERPOOL | | C11 | | 1937-58 | | 7 |
| LIVERPOOL | | C171 | | | | 94 |
| LIZARD | | H58 | | 1914/18 | | 18 |
| LIZARD | | H60 | | 1918/19 | | 18 |
| LIZARD | | H62 | | 1919/21 | | 18 |
| LIZZIE BIRREL | | FY1547 | | | | 15 |
| LLANDAFF | | F61 | | | | 12 |
| LLANDOVERY | | A207 | | AG | | 2 |
| LLANDUDNO | | J67 | | | | 22 |
| LLANDUDNO | | N67 | | | | 33 |
| LLANGIBBY CASTLE | | 4.424 | | | | 14 |
| LLANSTEPHAN CASTLE | | F108 | | | | 11 |
| LLEWELLYN | | H61 | | 1919 | | 18 |
| LLEWELLYN | | H83 | | 1919 | | 18 |
| LLEWELLYN | | H99 | | 1914 | | 18 |
| LLEWELLYN | | J278 | | RCN | | 22 |
| LLOYD GEORGE | | J279 | | | | 22 |
| LOBELIA | | K05 | | FRENCH | | 23 |
| LOBELIA | | M05 | | | | 30 |
| LOCH ACHANALT | | F424 | | | | 12 |
| LOCH ACHANALT | | K424 | | RNZN | | 23 |
| LOCH ACHRAY | | F426 | | | | 12 |
| LOCH ACHRAY | | K426 | | | | 23 |
| LOCH AFFRIC | | K601 | | CANC | | 23 |
| LOCH ALVIE | | F428 | | | | 12 |
| LOCH ALVIE | | K428 | | RCN | | 23 |
| LOCH ALWINGTON | | K660 | | | | 23 |
| LOCH ARD | | K602 | | | | 23 |
| LOCH ARKAIG | | F603 | | | | 12 |
| LOCH ARKAIG | | K603 | | | | 23 |
| LOCH ARNISH | | K605 | | | | 23 |
| LOCH BLAIR | | 4.203 | | | | 14 |
| LOCH BUIE | | FY688 | | | | 15 |
| LOCH CLUNIE | | K607 | | CANC | | 23 |
| LOCH CRAGGIE | | F609 | | | | 12 |
| LOCH CRAGGIE | | K609 | | | | 23 |
| LOCH DOON | | FY127 | | | | 15 |
| LOCH DUNVEGAN | | F425 | | 1950 | | 12 |
| LOCH DUNVEGAN | | K425 | | | | 23 |
| LOCH ECK | | F422 | | | | 12 |
| LOCH ECK | | K422 | | | | 23 |
| LOCH ERIBOL | | FY704 | | | | 15 |
| LOCH ERICHT | | K612 | | CANC | | 23 |
| LOCH ERISORT | | K613 | | CANC | | 23 |
| LOCH FADA | | K390 | | | | 23 |
| LOCH FADA | | F390 | | | | 12 |
| LOCH FRISA | | K615 | | | | 23 |
| LOCH FYNE | | F429 | | | | 12 |
| LOCH FYNE | | K429 | | | | 23 |
| LOCH GARVE | | K617 | | CANC | | 23 |
| LOCH GLASHAN | | K618 | | CANC | | 23 |
| LOCH GLENDHU | | F619 | | | | 12 |
| LOCH GLENDHU | | K619 | | | | 23 |
| LOCH GORM | | F620 | | | | 12 |
| LOCH GORM | | K620 | | | | 23 |
| LOCH GRIAM | | K621 | | CANC | | 23 |
| LOCH HARRAY | | K623 | | CANC | | 23 |
| LOCH HOPE | | 4.97 | | | | 14 |
| LOCH INSH | | F433 | | | | 12 |
| LOCH INSH | | K433 | | | | 23 |
| LOCH KATRINE | | F625 | | | | 12 |
| LOCH KATRINE | | K625 | | | | 23 |
| LOCH KEN | | K626 | | CANC | | 23 |
| LOCH KILLIN | | F391 | | | | 12 |
| LOCH KILLIN | | K391 | | | | 23 |
| LOCH KILLISPORT | | F628 | | | | 12 |
| LOCH KILLISPORT | | K628 | | | | 23 |
| LOCH KIRBISTER | | K629 | | CANC | | 23 |
| LOCH LAGAN | | Z123 | | | | 48 |
| LOCH LEVEN | | FY642 | | | | 15 |
| LOCH LINFERN | | K631 | | CANC | | 23 |
| LOCH LINNHE | | K632 | | CANC | | 23 |
| LOCH LOMOND | | F437 | | | | 12 |
| LOCH LOMOND | | K437 | | | | 23 |
| LOCH LONG | | Z165 | | | | 48 |
| LOCH LYON | | K635 | | CANC | | 23 |
| LOCH MELFORT | | FY151 | | | | 15 |
| LOCH MINNICK | | K637 | | CANC | | 23 |
| LOCH MOIDART | | 4.229 | | | | 14 |
| LOCH MONTREITH | | FY135 | | | | 15 |
| LOCH MORE | | F639 | | | | 12 |
| LOCH MORE | | K639 | | | | 23 |
| LOCH MORLICH | | K517 | | | | 23 |
| LOCH MORLICH | | F517 | | | | 12 |
| LOCH NELL | | K641 | | CANC | | 23 |
| LOCH NEVIS | | M41 | | | | 29 |
| LOCH ODAIRN | | K642 | | CANC | | 23 |
| LOCH OSKAIG | | FY175 | | | | 15 |
| LOCH OSSAIN | | K643 | | CANC | | 23 |
| LOCH PARK | | FY1835 | | | | 15 |
| LOCH QUOICH | | F434 | | | | 12 |
| LOCH QUOICH | | K434 | | | | 23 |
| LOCH RANNOCH | | FY779 | | | | 15 |
| LOCH RUTHVEN | | F645 | | | | 12 |
| LOCH RUTHVEN | | K645 | | | | 23 |
| LOCH RYAN | | K646 | | CANC | | 23 |
| LOCH SCAVAIG | | F648 | | | | 12 |
| LOCH SCAVAIG | | K648 | | | | 23 |
| LOCH SCRIDAIN | | K649 | | CANC | | 23 |
| LOCH SHIN | | Z124 | | | | 48 |
| LOCH SHIN | | F421 | | | | 12 |
| LOCH SHIN | | K421 | | | | 23 |
| LOCH TANNA | | K652 | | CANC | | 23 |
| LOCH TARBERT | | F431 | | | | 12 |
| LOCH TARBERT | | K431 | | | | 23 |
| LOCH TILT | | K653 | | CANC | | 23 |
| LOCH TRALAIG | | F655 | | | | 12 |
| LOCH TRALAIG | | K655 | | | | 23 |
| LOCH TULLA | | FY199 | | | | 15 |
| LOCH URIGILL | | K656 | | CANC | | 23 |
| LOCH VENNACHER | | K657 | | CANC | | 23 |
| LOCH VEYATIE | | F658 | | | | 12 |
| LOCH VEYATIE | | K658 | | | | 23 |
| LOCH WATTEN | | K659 | | CANC | | 23 |
| LOCHINVAR | | G06 | | | | 17 |
| LOCHINVAR | | H49 | | 1919 | | 18 |
| LOCHINVAR | | F42 | | SOLD 1921 | | 12 |
| LOCHY | | F365 | | | | 12 |
| LOCHY | | K365 | | | | 23 |
| LOCKEPORT | | J100 | | RCN | | 22 |
| LOCUST | | D54 | | 1918 EX D84 REN H02 | | 9 |
| LOCUST | | D84 | | 1915/18 EX D29 REN D54 | | 9 |
| LOCUST | | P28 | | | | 37 |
| LOCUST | | T28 | | | | 41 |
| LOCUST | | D29 | | 1914/15 REN D84 | | 9 |
| LODESTONE | | A115 | | | | 2 |
| LOFOTEN | | K07 | | | | 24 |
| LOFOTEN | | L111 | | | | 27 |
| LOGISTIC SUPPORT GROUP, BRITISH PACIFIC FLEET | | F224 | | | | 99 |
| LOIS | | FY781 | | | | 15 |
| LOMBARD | | 4.169 | | | | 14 |
| LONDON | | 69 | | | | 1 |
| LONDON | | F95 | | FF | | 12 |
| LONDON | | C69 | | 1927-50 | | 7 |
| LONDON | | D16 | | 1963/80 | | 9 |
| LONDON | | F95 | | EX BLOODHOUND | | 12 |
| LONDON | | C178 | | | | 94 |
| LONDONDERRY | | L76 | | | | 25 |
| LONDONDERRY | | U76 | | | | 42 |
| LONDONDERRY | | F108 | | | | 12 |
| LONG BRANCHE | | K487 | | RCN EX CANDYTUFT | | 23 |
| LONG TOW | | W93 | | | | 43 |
| LONGA | | T366 | | | | 41 |
| LONGBOW | | G55 | | CANC | | 17 |
| LONGUEIL | | K672 | | RCN | | 23 |
| LOOE | | X63 | | DECOY | | 45 |
| LOOKOUT | | H24 | | 1914 | | 18 |
| LOOKOUT | | H62 | | 1918 | | 18 |
| LOOKOUT | | F32 | | F/G | | 16 |
| LOOKOUT | | G32 | | WAS F32 | | 17 |
| LOOSESTRIFE | | K105 | | | | 23 |
| LORD AUSTIN | | FY220 | | LOST | | 15 |
| LORD BARHAM | | FY929 | | | | 15 |
| LORD BEACONSFIELD | | FY608 | | | | 15 |
| LORD CAVAN | | FY1506 | | | | 15 |
| LORD DARLING | | FY1774 | | | | 15 |
| LORD ESSENDEN | | FY218 | | | | 15 |
| LORD GAINFORD | | Z111 | | | | 48 |
| LORD GREY | | FY1593 | | | | 15 |
| LORD HAILSHAM | | FY109 | | LOST | | 15 |
| LORD HOOD | | FY930 | | | | 15 |
| LORD HOTHAM | | FY113 | | | | 15 |
| LORD HOTHAM | | FY133 | | | | 15 |
| LORD INCHCAPE | | FY1611 | | | | 15 |
| LORD IRWIN | | FY1617 | | | | 15 |
| LORD KEITH | | FY1884 | | | | 15 |
| LORD LLOYD | | FY157 | | | | 15 |
| LORD MELCHETT | | FY672 | | | | 15 |
| LORD MIDDLETON | | FY219 | | | | 15 |
| LORD NORTHCLIFFE | | FY780 | | | | 15 |
| LORD NUFFIELD | | FY221 | | | | 15 |
| LORD PLENDER | | FY181 | | | | 15 |
| LORD RODNEY | | FY877 | | | | 15 |
| LORD SNOWDEN | | FY115 | | LOST | | 15 |
| LORD STANHOPE | | FY163 | | | | 15 |
| LORD STONEHAVEN | | FY187 | | LOST | | 15 |
| LORD WAKEFIELD | | FY 170 | | LOST | | 15 |
| LORING | | K565 | | | | 23 |
| LORNA | | 4.65 | | | | 14 |
| LORNA DOONE | | 4.402 | | | | 14 |
| LORNA DOONE | | J135 | | | | 22 |
| LORRAINE | | 4.17 | | | | 14 |
| LOSSIE | | K303 | | | | 23 |
| LOTHIAN | | F168 | | LSHQ | | 11 |
| LOTHIAN | | B201 | | LSH | | 93 |
| LOTUS | | K93 | | TO FRENCH J495 COMMANDANT D’ESTIENNE D’ORVES | | 23 |
| LOTUS (II) | | K130 | | | | 23 |
| LOUIS | | H07 | | 1914 | | 18 |
| LOUIS | | K515 | | | | 23 |
| LOUIS BOTHA | | 4.207 | | | | 14 |
| LOUISBURG | | K143 | | RCN LOST | | 23 |
| LOUISBURG | | K401 | | RCN | | 23 |
| LOUISE ET MARIE | | FY1917 | | FRENCH | | 15 |
| LOVANIA | | FY942 | | | | 15 |
| LOWESTOFT | | F103 | | | | 12 |
| LOWESTOFT | | L59 | | | | 25 |
| LOWTHER | | FY782 | | | | 15 |
| LOYAL | | H63 | | 1918 | | 18 |
| LOYAL | | H80 | | 1914 | | 18 |
| LOYAL | | F15 | | F/G | | 16 |
| LOYAL | | G15 | | LOST WAS F15 | | 17 |
| LOYAL CHANCELLOR | | A1770 | | | | 2 |
| LOYAL FACTOR | | A382 | | | | 2 |
| LOYAL FRIEND | | FY298 | | | | 15 |
| LOYAL GOVERNOR | | A510 | | EX ALERT AG | | 2 |
| LOYAL HELPER | | A157 | | AG | | 2 |
| LOYAL MODERATOR | | A220 | | | | 2 |
| LOYAL PROCTOR | | A1771 | | | | 2 |
| LOYAL VOLUNTEER | | A160 | | | | 2 |
| LOYAL WATCHER | | A159 | | AG | | 2 |
| LOYALTY | | A360 | | AG | | 2 |
| LOYALTY | | J217 | | EX RATTLER LOST | | 22 |
| LUCE BAY | | K427 | | | | 23 |
| LUCIA | | F27 | | | | 11 |
| LUCIA | | 127 | | | | 20 |
| LUCIEN GOUCY | | FY1768 | | FRENCH | | 15 |
| LUCIENNE JEANNE | | FY894 | | FRENCH | | 15 |
| LUCIENNE JEANNE | | FY1769 | | LOST | | 15 |
| LUCIFER | | H22 | | 1914 | | 18 |
| LUCIFER | | H52 | | 1919 | | 18 |
| LUCIFER | | H64 | | 1918 | | 18 |
| LUCIFER | | XE11 | | LOST 1945 COLLISION | | 87 |
| LUCKNOW | | T267 | | RIN | | 41 |
| LUDA LORD | | FY776 | | | | 15 |
| LUDA LORD | | Y7.34 | | | | 46 |
| LUDGATE | | Z45 | | SCUTTLED SINGP | | 48 |
| LUDHAM | | M2708 | | | | 31 |
| LUDLOW | | G57 | | 1940 | | 17 |
| LULLINGTON | | M1163 | | | | 31 |
| LULWORTH | | Y60 | | EX US | | 47 |
| LUMINARY | | Z189 | | | | 48 |
| LUNAR BOW | | FY32 | | | | 15 |
| LUNAR BOW | | Z62 | | | | 48 |
| LUNARY | | B03 | | | | 5 |
| LUNDY | | A336 | | TCV | | 2 |
| LUNDY | | DV12 | | | | 10 |
| LUNDY | | T272 | | DV 12 | | 41 |
| LUNE | | 4.416 | | | | 14 |
| LUNE | | FY588 | | | | 15 |
| LUNENBURG | | K151 | | RCN | | 23 |
| LUPIN | | L19 | | | | 25 |
| LUPIN | | U19 | | | | 42 |
| LURCHER | | H65 | | 1918/19 | | 18 |
| LURCHER | | H90 | | 1919/21 | | 18 |
| LURCHER | | FY347 | | | | 15 |
| LURCHER | | H01 | | 1914/18 | | 18 |
| LYBIAN | | FY1800 | | | | 15 |
| LYBIAN | | Y7.18 | | | | 46 |
| LYDD | | J44 | | | | 22 |
| LYDD | | N44 | | | | 33 |
| LYDFORD | | A251 | | AG | | 2 |
| LYDIA LONG | | FY1553 | | | | 15 |
| LYDIARD | | FY177 | | | | 15 |
| LYDIARD | | H08 | | 1914 | | 18 |
| LYDIARD | | H66 | | 1918 | | 18 |
| LYEMUN | | J209 | | | | 22 |
| LYME BAY | | L3007 | | AOR | | 27 |
| LYME REGIS | | J193 | | | | 22 |
| LYME REGIS | | J197 | | | | 22 |
| LYME REGIS II | | J319 | | | | 22 |
| LYNESS | | A339 | | STORES | | 2 |
| LYNX | | H71 | | 1914 | | 18 |
| LYNX | | F27 | | | | 12 |
| LYRA | | H60 | | 1914 | | 18 |
| LYRA | | H67 | | 1918 | | 18 |
| LYRA | | H97 | | 1919 | | 18 |
| LYSANDER | | H68 | | 1918 | | 18 |
| LYSANDER | | H81 | | 1919 | | 18 |
| LYSANDER | | J379 | | | | 22 |
| LYSANDER | | M379 | | | | 31 |
| LYSDANDER | | H93 | | 1914 | | 18 |