| Ship Name | Hull No. | IMO No. | ENI No. | Year Built | Date Taken | Location |
|---|---|---|---|---|---|---|
| Miyuki Maru | 1957 | 2005-07-16 | River Thames | |||
| Miyuki Maru | 1957 | 2009-06-14 | River Thames | |||
| fv Mizpah | LK173 | 8715584 | 1988 | 2015-05-18 | Lerwick | |
| fv Mizpah | LK173 | 8715584 | 1988 | 2015-05-20 | Lerwick | |
| rv Moby Dick | 1959 | 1989-04-30 | Southampton | |||
| Moby King | 6605058 | 1966 | 1999-09-03 | Bastia | ||
| Moby Vincent | 7360605 | 1974 | 1999-09-04 | Bastia | ||
| ts Moder Dy | 1990 | 2013-05-10 | Scalloway | |||
| Mokul Nordic | 9444778 | 2014 | 2014-06-14 | Montrose | ||
| MOL Advantage | 9245005 | 2001 | 2002-09-01 | Southampton | ||
| MOL Advantage | 9245005 | 2001 | 2003-04-12 | Southampton | ||
| MOL Caledon | 2005 | 2010-06-20 | Rotterdam | |||
| MOL Charisma | 2007 | 2013-06-10 | Solent | |||
| MOL Continuity | 2008 | 2013-06-08 | Southampton | |||
| MOL Creation | 2007 | 2008-06-22 | Southampton | |||
| MOL Maas | 1995 | 2001-05-29 | River Elbe | |||
| MOL Maneuver | 9475648 | 2011 | 2011-06-26 | Rotterdam | ||
| MOL Pace | 2006 | 2006-04-22 | Southampton | |||
| MOL Pace | 2006 | 2010-06-20 | Rotterdam | |||
| MOL Precision | 9236470 | 2002 | 2002-05-31 | Southampton | ||
| MOL Precision | 9236470 | 2002 | 2003-05-03 | Southampton | ||
| MOL Solution | 9245029 | 2001 | 2002-06-17 | Rotterdam | ||
| MOL Tyne | 1995 | 2001-03-20 | River Elbe | |||
| Molo Carrier | 1983 | 2012-06-25 | Rotterdam | |||
| Mona Swan | 9371804 | 2006 | 2024-07-15 | Solent | ||
| Monadhliath | 1971 | 2014-05-05 | Macduff | |||
| Monarch Bay | 9173678 | 1998 | 2003-05-08 | Aberdeen | ||
| Monarch Bay | 9173678 | 1998 | 2003-05-12 | Aberdeen | ||
| Monchegorsk | 8013039 | 1983 | 1992-09-27 | Rotterdam | ||
| Monet | 1978 | 1998-05-16 | River Thames | |||
| Monica R | 6517017 | 1965 | 1990-10-27 | Portsmouth Harbour | ||
| HMS Monmouth | F235 | 1993 | 2016-10-07 | Firth of Clyde | ||
| HMS Monmouth | F235 | 1993 | 2016-10-10 | Firth of Clyde | ||
| Monsoon Clipper | 10 | 9451795 | 2007 | 2008-05-18 | River Thames | |
| Monsoon Clipper | 10 | 9451795 | 2007 | 2009-06-14 | River Thames | |
| Monsoon Clipper | 9451795 | 2007 | 2023-07-06 | River Thames | ||
| Monsoon Clipper | 9451795 | 2007 | 2023-07-06 | River Thames | ||
| Monsoon Clipper | 9451795 | 2007 | 2025-07-20 | River Thames | ||
| Mont St. Michel | 9238337 | 2002 | 2003-05-05 | Portsmouth Harbour | ||
| Mont St. Michel | 9238337 | 2002 | 2003-09-27 | Portsmouth Harbour | ||
| Mont St. Michel | 9238337 | 2002 | 2007-09-08 | Portsmouth Harbour | ||
| Mont St. Michel | 9238337 | 2002 | 2012-07-21 | Portsmouth Harbour | ||
| Mont St. Michel | 9238337 | 2002 | 2023-07-08 | Solent | ||
| Mont St. Michel | 9238337 | 2002 | 2024-04-18 | Portsmouth Harbour | ||
| Mont Ventoux | 7908445 | 1980 | 1989-08-17 | Marseille | ||
| FS Montcalm | D642 | 1982 | 2008-08-09 | Toulon | ||
| Monte | 9277278 | 2003 | 2014-06-01 | River Mersey | ||
| Monte Cinto | 8120686 | 1984 | 1989-08-13 | Marseille | ||
| Monte Cinto | 8120686 | 1984 | 1989-08-17 | Marseille | ||
| Monte Cinto | 8120686 | 1984 | 2008-08-10 | Marseille | ||
| Monte d'Oro | 8911516 | 1991 | 2008-08-10 | Marseille | ||
| Monte Pascoal | 2005 | 2006-05-06 | River Thames | |||
| Monte Rosa | 2005 | 2008-05-17 | River Thames | |||
| Monte Rotondo | 7224461 | 1973 | 1989-08-13 | Marseille | ||
| Monte Rotondo | 7224461 | 1973 | 1990-07-06 | Marseille | ||
| Monte Stello | 7807093 | 1979 | 1990-07-05 | Marseille | ||
| Monterey | 1978 | 2010-05-22 | River Thames | |||
| Monteverde | 9158496 | 1998 | 2002-06-18 | Vlissingen | ||
| Montgat | 1993 | 2001-03-18 | Barcelona | |||
| Montornes | 1992 | 2001-03-18 | Barcelona | |||
| HMCS Montreal | FFH336 | 1994 | 2015-10-18 | Firth of Clyde | ||
| HMS Montrose | F236 | 1994 | 2023-07-08 | Portsmouth Harbour | ||
| Montrose Marine II | 2013 | 2014-10-10 | Arbroath | |||
| Montrose Marine II | 2013 | 2015-05-24 | Arbroath | |||
| Montsacopa | 1998 | 2001-03-18 | Barcelona | |||
| Monzon | 1979 | 1991-03-28 | Alicante | |||
| Moon Clipper | 2 | 9245586 | 2001 | 2008-05-18 | River Thames | |
| Moon Clipper | 2 | 9245586 | 2001 | 2009-06-11 | River Thames | |
| Moon Clipper | 9245586 | 2001 | 2025-07-20 | River Thames | ||
| RNLB Moonbeam | 47-034 | 1989 | 2013-09-16 | Montrose | ||
| Moondance | 7800112 | 1978 | 2009-06-27 | River Mersey | ||
| Moorburg | 1979 | 1997-06-09 | Hamburg | |||
| RMAS Moorfowl | Y33 | 8807959 | 1989 | 1997-09-27 | Plymouth | |
| RMAS Moorhen | Y32 | 8807947 | 1989 | 1989-05-20 | Portsmouth Harbour | |
| RMAS Moorhen | Y32 | 8807947 | 1989 | 1989-07-02 | Portsmouth Harbour | |
| RMAS Moorhen | Y32 | 8807947 | 1989 | 1999-05-25 | Portsmouth Harbour | |
| Mooring Tug I | 1986 | 1995-08-23 | Hamburg | |||
| Mooring Tug II | 1986 | 1995-08-23 | Hamburg | |||
| Mooring Tug III | 1986 | 1995-08-23 | Hamburg | |||
| Mooring Tug III | 1986 | 1998-05-27 | Hamburg | |||
| Mopa Maria | 8121460 | 1983 | 1992-09-05 | Southampton | ||
| RNLB Mora Edith Macdonald | 12-23 | 1997 | 2010-05-05 | Oban | ||
| RNLB Mora Edith Macdonald | 12-23 | 1997 | 2011-04-23 | Oban | ||
| RNLB Mora Edith Macdonald | 14-23 | 1997 | 2016-05-15 | Oban | ||
| Morag M | 9546849 | 2008 | 2015-06-04 | Firth of Clyde | ||
| Morag M | 9546849 | 2008 | 2015-06-07 | Firth of Clyde | ||
| pv Morbraz | 1990-07-10 | Lorient | ||||
| fv Moremma | PD135 | 8774011 | 1988 | 2014-05-05 | Peterhead | |
| fv Morgensonne | D259 | 1961 | 1998-08-29 | Howth | ||
| Morgenstond I | 1993 | 1997-06-08 | Rendsburg | |||
| Moritz Schulte | 9220794 | 2002 | 2016-04-16 | Firth of Forth | ||
| Mornes | 8914128 | 1991 | 2017-09-16 | Blyth | ||
| Morning Crown | 9285641 | 2005 | 2006-05-06 | River Thames | ||
| Morning Laura | 9445992 | 2010 | 2024-07-15 | Southampton | ||
| Morning Power | 8020941 | 1981 | 2006-08-10 | River Thames | ||
| fv Morning Star | LH870 | 1989 | 2011-11-06 | Port Seton | ||
| fv Morning Star | SN87 | 1989 | 2014-05-24 | River Tyne | ||
| fv Morning Star | SN87 | 1989 | 2014-08-24 | River Tyne | ||
| fv Morten Einar | H-121-AV | 7713008 | 1978 | 2005-05-13 | Stavanger | |
| rv Morven | 1983 | 2006-04-22 | Southampton |