| Markandeya | A devotee of Lord Shiva; A devotee to Lord Shiva,A devotee of Lord Shiva; Name of a sage.; A sage |
| Marrok | A knight thought to be a werewolf |
| Marsha | Form Of Marcia; Respectable; Variant of Marcia.; Variant of Marcia: Mars (Roman god of war). Derived from the Roman clan Marcius. Warring. |
| Marta | Bitter.; Derives From Martha; Lady; From the name MARTHA; Spanish form of Martha lady; Variant of Martha: Lady. |
| Martand | The sun in Hindu mythology. |
| Martanda | The sun god in the Vedas. |
| Marudham | From the lush green fields |
| Marut | A storm god.; The wind |
| Maruti | Hanuman, Bhimsen; Lord Hanuman |
| Marwan | Old Arabic name |
| Marwarid | Form of Margaret, meaning 'resembling a pearl / the child of light'; Pearl. Jewel. |
| Marya | Bitter.; Mark limit |
| Maryam | Bitter. Variant of Mary.; Name of Mother of Jesus; Variant of Mary bitter. |
| Marzouq | Blessed (by God). Fortunate. |
| Masichuvio | Gray deer (Hopi) |
| Masilmani | Pure, without any blemishes |
| Maska | A name meaning soft butter. |
| Masma | Innocent. Infallible.; One who is innocent |
| Masoud | One who is lucky and happy. |
| Mastura | Hidden. Chaste.; One who is pure; chaste |
| Matangi | Durga; Goddess Durga; In Hinduism, the patron of inner thought |
| Matchitehew | He has an evil heart (Algonquin) |
| Matchitisiw | He has bad character (Algonquin) |
| Matilda | Mother of Merlin |
| Matoskah | White bear (Sioux) |
| Matrika | Divine mother.; Mother |
| Matsendra | King of the fishes |
| Matsya | A Sanskrit name meaning the fish. |
| Matunaagd | Fights (Algonquin) |
| Matwau | Enemy (Algonquin) |
| Maulik | A name meaning precious or dear. |
| Mausami | One born during a specific season. |
| Maushmi | A name meaning seasonal or timely. |
| Mausi | A term meaning mothers sister. |
| Mausumi | Beauty, monsoon wind |
| May | Bitter; Born during the month of May; form of Mary, meaning star of the sea / from the sea of bitterness; Daughter of Atlas; Maia; the month of May.; Diminutive of Margaret: Pearl.; Diminutive of Margaret: Child of light. Famous Bearer: Margaret Thatche |
| Maya | Abbreviation of Amalia: variant of Maia.; Daughter of Atlas.; Illusion; Illusion, Goddess Lakshmi; An illusion; a dream / form of Maia, meaning the great one / a brave warrior; An illusion, a dream / woman of the water; Mother |
| Mayank | A Sanskrit name meaning the moon. |
| Mayanka | A name meaning the moon or glow. |
| Mayil | Full of Grace and Beauty like a Peacock (Peahen); also Mayili, Mayila; Full of grace, like a peacock |