M
The abbreviations in the "category" column are: A=anglicization T= traditional name Tr= Irish translation of a non-Irish name M= modern creation P= place name L= last name, S= saint name.
| Name (gender) | Category | Pronunciation | Other Forms | Origin/Meaning |
|---|---|---|---|---|
| MacKenna | L | ma KEN na | Mac Cionaith, McKenna | son of Cionaith |
| Mac Nisse | T, S | mahk NISH eh | - | son of Ness (goddess name?) |
| Mac Táil (m) | T, S | mahk TAWL | - | son of adze |
| Madailéin (f) | Tr | MAH da lane | Madeleine | from Hebrew- from Magdala |
| Madigan | L | MAD uh gun | Ó Madagáin | [grandson or descendant of] a little dog |
| Mael Íosa (m) | T | mal EE sa | Maelisa, Melissa | "servant of Jesus" |
| Máeleachlainn (m) | T, S | mal LACH lan | Malachy | "devotee of St. Sechnall" |
| Maeve (f) | A | MAIV | Meadhbh | "intoxicating one" |
| Magherally | P | ma HRAL lee | - | ? |
| Maguire | L | ma GWY er | Mag Uidhir | "dun-colored" |
| Mainchín (m) | T, S | MAHN cheen | Mainchíne, Munchin, Mannix | "monk" |
| Maine (m) | T, S | MAHN yeh | Many | ? |
| Máire (f) | Tr | MOI reh, MOI a | Mary, Moya, Moira | from Hebrew Mary- bitterness? |
| Mairéad (f) | Tr | ma RAID | Margaret, Maighréad | from Greek Margaret- pearl |
| Máirín (f) | Tr | MOI reen | Mary, Maureen | from Hebrew Mary- bitterness? |
| Mairsial (m) | Tr | MAR shul | Marcus | from Latin Marcus/Mark via the Norman French Marcel- of the God Mars |
| Mairtín (m) | Tr | MAR shteen | Martin | from Latin, "war like" |
| Maitiu (m) | Tr | MAH tyew | Matthew, Matthias | From Hebrew- "Gift of God" |
| Malachy (m) | A,S | MAL a kee | Maeleachlainn | "devotee of St. Sechnall" |
| Malinn, Milynn | L | muh LIN | Ó Maoilfhinn | "descendant of the fair chief" |
| Mallaidh (f) | Tr | MAH lee | Molly | dim. of Mary- Hebrew, trad. associated with "bitterness." |
| Malone | L | mal OAN | mal Eoin | servant of St. John |
| Mánus (m) | Tr | MAW nis | Magnus, Manus | from Latin Magnus- great |
| Maol Mhuire (m & f) | T, S | mail VIR eh | Murray, Miles, Milo, Meyler | devotee of St. Mary |
| Maolán (m) | T | MALE awn | Mullen | warrior |
| Maon (m & f) | T | MAIN | - | silent- Celtic god name |
| Marcán (m) | T, S | MAR cawn | Marcan | steed |
| Marcas | Tr | MAR cas | Marcus, Mairsial | from Latin Marcus/Mark- of the God Mars |
| Marga (f) | T | MAR ga | - | ? |
| Marta (f) | Tr | MAR ta | martha | from Hebrew/Aramaic, "lady" |
| Maura (f) | A | MAW ra, MORE a | Máire | from Hebrew Mary-bitterness? |
| Maureen (f) | A | mawr EEN, more EEN | Mairín | from Hebrew Mary-bitterness? nn for Máire |
| Meadhbh (f) | T | MAVE | Maeve, Medb, Méabh, Margery | she who intoxicates |
| Mealla (f) | T | MYAL a | Mell, Mella | lightning |
| Meallán (m) | T,S | MEL awn | Mellan | lightning |
| Meegan | L | MEE gan | Ó Miadhagáin | honorable |
| Mel (m) | T,S | MEL | - | ?? |
| Miach (m & f) | T | MEE uch | - | horable; proud |
| Mochta (m) | T, S | MUCH ta | - | great |
| Moibhí (m) | T, S | MUV ee | Mo Bí | pet from of Berchán and Breanainn |
| Moinnine (f) | T,S | mo NIN yeh | Monina, Blinne | My ninne- ninne is said to be the first word this saint said |
| Moira (f) | A | MOY ra | Máire | from Hebrew Mary- bitterness? |
| Móirne (f) | T | MORN yeh | Maud, Maria | great |
| Molaisse (m) | T, S | muh LAHS eh | Molaise, Lazarus | pet from of Laisrén ("flame; fire") |
| Molly (f) | A | MOL ee | Mallaidh, Maille | from Hebrew Mary- bitterness? nn for Mary |
| Mona (f) | A,S | MO na | Muadhnait | noble, good |
| Moncha (f) | T | MUN cha | Monica | derived from a Celtic goddess name |
| Mór (f) | T | MORE | Moreen, Móirín, Mary, Agatha, Martha | great |
| Morann (m) | T | MUR an | Morand | ? |
| Muadhnait (f) | T,S | MOO nit | Monat, Mona, Muadnat | noble, good |
| Muircheartach (m) | T | MUR er tach | Briartach, Murtagh, Mortimer, Maurice, Monty | skilled in seacraft; mariner |
| Muireadhach (m) | T | MWIR akh | Murray, Murdough, Muiríoch | lord, master |
| Muireann (f) | T | MWIR in | Murren, Maren, Mairenn, Muirfhionn, Marion, Madge | sea-fair |
| Muirgheal (f) | T | MWIR yal | Muriel, Muirgel | sea-bright/ sea-white |
| Muirín (m&f) | T,S | MIR een | Miren, Muirghein | born of the sea |
| Muiris (m) | Tr | MWEER ish | Maurice | from Latin- dark-skinned |
| Muirne (f) | T | MWIRN yeh | Myrna | high spirited, festive |
| Murchadh (m) | T | MUR a kha | Murrough, Morgan | sea battler |
| Murchú (m) | T, S | MUR choo | Murphy | hound of the sea |
| Murphy | L | MUR fee | Ó Murchu | hound of the sea |
| Murray | L | MUR ree | Ó Muireadhach | seaman or master |
| Myrna (f) | A | MUR na | Muirne | high spirited, festive |