| Ship Name | Hull No. | IMO No. | ENI No. | Year Built | Date Taken | Location |
|---|---|---|---|---|---|---|
| Mercuur | 8432974 | 1956 | 2011-06-28 | Rotterdam | ||
| Merea | 8127672 | 1984 | 2001-03-20 | Hamburg | ||
| Merete Chris | 6616904 | 1966 | 2017-04-15 | Firth of Forth | ||
| Merete Chris | 6616904 | 1966 | 2021-10-13 | Aberdeen | ||
| Merger | 1962 | 2006-06-14 | Glasson Dock | |||
| Merger | 1962 | 2008-12-27 | Glasson Dock | |||
| Meridian | 2009-06-11 | River Thames | ||||
| rv Meridian | 9299977 | 2003 | 2008-04-24 | Holyhead | ||
| rv Meriel D | 2008 | 2009-09-05 | Grimsby | |||
| Merino | 9121871 | 1997 | 1997-06-06 | Bremerhaven | ||
| Merit | 1964 | 1998-02-13 | River Thames | |||
| Merit | 1964 | 2009-10-26 | River Thames | |||
| Merit | 2000 | 2013-09-16 | Firth of Tay | |||
| BNS Merksem | M476 | 1959 | 2003-05-07 | Zeebrugge | ||
| Merkur | 1991 | 1998-05-27 | Hamburg | |||
| Merle | 1980 | 1997-06-05 | Rendsburg | |||
| Mermaid | 2014-05-31 | River Mersey | ||||
| Mermaid | 2019-08-03 | River Mersey | ||||
| Mermaid | 8504181 | 1985 | 2003-05-08 | Aberdeen | ||
| THV Mermaid | 8511275 | 1987 | 1997-07-13 | Southampton | ||
| Mermaid Hawk | 1977 | 1998-05-29 | Fredericia | |||
| Merou | 8107036 | 1982 | 1989-08-15 | Toulon | ||
| USS Merrill | DD976 | 1978 | 1994-09-16 | San Diego | ||
| Merry Fisher | 8519318 | 1986 | 2002-06-21 | Vlissingen | ||
| HMS Mersey | P283 | 2004 | 2003-07-05 | Southampton | ||
| HMS Mersey | P283 | 2004 | 2003-09-27 | Southampton | ||
| HMS Mersey | P283 | 2004 | 2010-11-22 | Firth of Clyde | ||
| HMS Mersey | P283 | 2004 | 2011-08-06 | Portsmouth Harbour | ||
| HMS Mersey | P283 | 2004 | 2012-07-20 | Portsmouth Harbour | ||
| HMS Mersey | P283 | 2004 | 2023-07-07 | Portsmouth Harbour | ||
| Mersey Endurance | 9568122 | 2012 | 2013-06-22 | River Mersey | ||
| Mersey Endurance | 9568122 | 2012 | 2014-05-31 | River Mersey | ||
| Mersey Endurance | 9568122 | 2012 | 2015-06-20 | River Mersey | ||
| Mersey Endurance | 9568122 | 2012 | 2019-08-03 | River Mersey | ||
| Mersey Fisher | 1998 | 2013-09-14 | Aberdeen | |||
| Mersey Guardian | 2012 | 2024-09-12 | Peterhead | |||
| Mersey Mammoth | 8521672 | 1986 | 2000-07-21 | River Mersey | ||
| Mersey Mariner | 7924308 | 1981 | 2003-06-14 | River Mersey | ||
| Mersey Mariner | 7924308 | 1981 | 2009-06-27 | River Mersey | ||
| Mersey Spirit | 9119476 | 1996 | 2015-06-20 | River Mersey | ||
| Mersey Spirit | 9119476 | 1996 | 2019-08-03 | River Mersey | ||
| Mersey Venture | 8201545 | 1983 | 2003-06-14 | River Mersey | ||
| Mersey Venture | 8201545 | 1983 | 2004-06-19 | River Mersey | ||
| Mersey Viking | 9136022 | 1997 | 2002-06-29 | River Mersey | ||
| Mersey Viking | 9136022 | 1997 | 2003-06-14 | River Mersey | ||
| Mersey Viking | 9136022 | 1997 | 2003-08-30 | River Mersey | ||
| Mersina | 1955 | 1997-06-23 | River Thames | |||
| Mersina | 1955 | 2002-06-14 | River Thames | |||
| Mersina | 1955 | 2009-06-11 | River Thames | |||
| Merwedijk | 2001 | 2010-06-20 | Rotterdam | |||
| Merwedijk | 2001 | 2010-08-06 | River Tyne | |||
| Meteor Clipper | 6 | 9451812 | 2007 | 2008-05-18 | River Thames | |
| Meteor Clipper | 6 | 9451812 | 2007 | 2009-06-11 | River Thames | |
| Methania | 7357452 | 1978 | 2010-08-14 | Southampton | ||
| Metilo | 8030269 | 1983 | 1989-06-17 | River Thames | ||
| FS Meuse | A607 | 1980 | 1991-12-16 | Toulon | ||
| MGB 81 | 1942 | 2010-08-15 | Portsmouth Harbour | |||
| USAV MGen. Henry Knox | LT802 | 1993 | 2006-04-22 | Southampton | ||
| USAV MGen. Nathaniel Greene | LT801 | 1993 | 2006-04-22 | Southampton | ||
| USAV MGen. Winfield Scott | LT805 | 1993 | 1999-08-15 | Southampton | ||
| USAV MGen. Winfield Scott | LT805 | 1993 | 2006-04-22 | Southampton | ||
| fv Mia Jane W | FR443 | 9008445 | 1989 | 2012-04-10 | Mallaig | |
| Michael | 1994 | 2001-05-27 | Lubeck | |||
| RNLB Michael and Jane Vernon | 17-10 | 1997 | 2003-05-11 | Symbister | ||
| RNLB Michael and Jane Vernon | 17-10 | 1997 | 2013-05-04 | Inverness | ||
| RNLB Michael and Jane Vernon | 17-10 | 1997 | 2013-05-10 | Lerwick | ||
| RNLB Michael and Jane Vernon | 17-10 | 1997 | 2015-05-18 | Lerwick | ||
| Michael Francis | 2000 | 2021-09-26 | Firth of Clyde | |||
| Michael M | 1980 | 1998-05-10 | Shoreham | |||
| Michel | 1978 | 1995-07-25 | Southampton | |||
| Michel | 1998 | 2001-05-27 | Hamburg | |||
| Michlifen | 7913153 | 1979 | 1998-05-08 | Portsmouth Harbour | ||
| Mick | 9736183 | 2019 | 2019-07-12 | River Tyne | ||
| Middelbank | 1963 | 1992-09-27 | Rotterdam | |||
| HMS Middleton | M34 | 1984 | 2015-05-21 | Lerwick | ||
| Midjur | 9015656 | 1992 | 1994-03-05 | Rouen | ||
| Midnight Merchant | 9181106 | 2000 | 2002-06-15 | Dover | ||
| Midnight Merchant | 9181106 | 2000 | 2003-05-13 | Dover | ||
| Midthordland | 5234539 | 1947 | 2005-05-12 | Bergen | ||
| Miggi | 8108353 | 1982 | 2000-06-01 | Valletta | ||
| Mighty Confidence | 9052721 | 1995 | 2003-07-05 | Solent | ||
| Mignon | 1966 | 1997-06-07 | Rendsburg | |||
| Mignon | 9189251 | 1999 | 2000-06-11 | Southampton | ||
| Mihails Lomonosovs | 7362354 | 1974 | 1997-06-09 | Hamburg | ||
| Miho Pracat | 9384514 | 2008 | 2012-06-27 | River Humber | ||
| Mikhail Cheremnykh | 1973 | 1997-04-20 | Rotterdam | |||
| Mikhail Strekalovskiy | 8131881 | 1981 | 2010-06-18 | River Humber | ||
| Mikhail Strekalovskiy | 8131881 | 1981 | 2012-06-22 | Rotterdam | ||
| Mikhail Strekalovskiy | 8131881 | 1981 | 2012-06-24 | Rotterdam | ||
| Mikhail Suslov | 7625823 | 1982 | 1989-06-17 | River Thames | ||
| Mikida | 1995 | 2011-06-26 | Rotterdam | |||
| Mikida | 1995 | 2012-06-25 | Rotterdam | |||
| Mila | 9501681 | 2013 | 2015-10-15 | Firth of Clyde | ||
| Milbrook | 1980 | 1996-07-21 | Southampton | |||
| Milbrook Surveyor II | 6609121 | 1966 | 1995-05-08 | Southampton | ||
| Milbrook Surveyor II | 6609121 | 1966 | 1997-10-17 | Southampton | ||
| Milenium | 9221346 | 2000 | 2001-03-18 | Barcelona | ||
| fv Miley Adelle | SN10 | 1972 | 2013-08-22 | River Tyne | ||
| fv Miley Adelle | SN10 | 1972 | 2014-08-24 | River Tyne | ||
| fv Miley Adelle | SN10 | 1972 | 2015-12-27 | River Tyne |