| Name |
Category |
Gender |
Meaning |
| Macario | Spanish | M | Blessed |
| Macerio | Spanish | M | Blessed |
| Madalena | Spanish | F | From the high tower |
| Madalynn | Spanish | F | From the high tower |
| Madelynn | Spanish | F | From the high tower |
| Madena | Spanish | F | From the high tower |
| Madia | Spanish | F | From the high tower |
| Madina | Spanish | F | From the high tower |
| Madre | Spanish | F | Mother |
| Magdalen | Spanish | F | From the high tower |
| Magdalena | Spanish | F | From the high tower |
| Magdalene | Spanish | F | From the high tower |
| Maite | Spanish | F | Dearly loved |
| Maitea | Spanish | F | Dearly loved |
| Malia | Spanish | F | Bitter or sea of bitterness |
| Malita | Spanish | F | Bitter |
| Manda | Spanish | F | Battle maid |
| Mannie | Spanish | M | God is with us |
| Manny | Spanish | M | God is with us |
| Mano | Spanish | M | God is with us |
| Manoela | Spanish | F | God is with us |
| Manolito | Spanish | M | God is with us |
| Manolo | Spanish | M | God is with us |
| Manuel | Spanish | M | God is with us |
| Manuela | Spanish | F | God is with us |
| Manuelo | Spanish | M | God is with us |
| Marcela | Spanish | F | Warlike |
| Marco | Spanish | M | Warlike |
| Marcos | Spanish | M | Warlike |
| Margarita | Spanish | F | Pearl |
| Maria | Spanish | F | Bitter or sea of bitterness |
| Mariano | Spanish | M | Bitter or sea of bitterness |
| Maricel | Spanish | F | Warlike |
| Maricela | Spanish | F | Warlike |
| Maricelia | Spanish | F | Warlike |
| Maricella | Spanish | F | Warlike |
| Marietta | Spanish | F | Bitter or sea of bitterness |
| Marina | Spanish | F | Sea maiden |
| Mario | Spanish | M | Of the sea or sailor |
| Mariquita | Spanish | F | Bitter or sea of bitterness |
| Marisa | Spanish | F | Of the sea |
| Marisela | Spanish | F | Warlike |
| Marisol | Spanish | F | Sunny sea |
| Marquez | Spanish | M | Nobleman |
| Marquilla | Spanish | F | Bitter |
| Marta | Spanish | F | Bitter |
| Martin | Spanish | M | Warlike |
| Martina | Spanish | F | Warlike |
| Martinez | Spanish | M | Warlike |
| Martino | Spanish | M | Warlike |
| Mateo | Spanish | M | Gift of God |
| Matias | Spanish | M | Gift of God |
| Matro | Spanish | M | Gift from God |
| Maureo | Spanish | M | Dark skinned |
| Mauricio | Spanish | M | Dark skinned |
| Mauro | Spanish | M | Moorish |
| Maya | Spanish | F | Industrious |
| Melisenda | Spanish | F | Sweet |
| Melita | Spanish | F | Abbreviation of Carmelita |
| Melosa | Spanish | F | Sweet |
| Melosia | Spanish | F | Sweet |
| Mendi | Spanish | F | Reference to the Virgin Mary |
| Mercedes | Spanish | F | Mercy or merciful |
| Miguel | Spanish | M | Who is like God |
| Miguela | Spanish | F | Who is like God |
| Milagritos | Spanish | F | Miracle |
| Milagros | Spanish | F | Miracle |
| Milagrosa | Spanish | F | Miracle |
| Miranda | Spanish | F | Admirable |
| Mirari | Spanish | F | Miracle |
| Mireya | Spanish | F | Miracle |
| Modesta | Spanish | F | Modest |
| Modeste | Spanish | F | Modest |
| Moises | Spanish | M | Saved from the water |
| Molara | Spanish | F | Reference to the Virgin Mary |
| Monica | Spanish | F | Advisor |
| Montae | Spanish | M | Mountain |
| Montay | Spanish | M | Mountain |
| Monte | Spanish | M | Mountain |
| Montel | Spanish | M | Mountain |
| Montes | Spanish | M | Mountain |
| Montez | Spanish | M | Mountain |
| Montrel | Spanish | M | Mountain |
| Montrell | Spanish | M | Mountain |
| Montrelle | Spanish | M | Mountain |
| Mora | Spanish | F | Berry |
| Morisa | Spanish | F | Dark |
| Morissa | Spanish | F | Dark |