| Maelwys | Legendary son of Baeddan. |
| Magan | Absorbed; Competant; Engrossed; Pearl |
| Maha | Beautiful Eyes; Gazelle; Wild cow. |
| Mahima | Glorious; Greatness |
| Maimuna | One who is trustworthy; Safe. Trustworthy. |
| Mairwen | A Welsh name meaning blessed maiden. |
| Makayla | Beautiful; Who Is Like God?; Form of Michaela, meaning 'who is like God?' |
| Mala | A garland; Garland, necklace; High Tower; Necklace; garland; String |
| Maleeha | Gift; Charming; Beautiful; Salty; Graceful |
| Mali | Flower; Resembling a flower / form of Molly, meaning 'star of the sea / from the sea of bitterness'; A ruler; the firstborn son; Welsh form of Molly: bitter. |
| Maliha | Graceful, Beautiful; Strong, beautiful |
| Malika | Angel; Destined to be queen; Flower; A garland; Industrious.; Queen |
| Malini | Florist; a river; Fragrant; Gardender; A garland maker |
| Malka | A name meaning a royal queen. |
| Mallolwch | Legendary king of Ireland. |
| Manal | Achieve; An accomplished woman; Attainment. Achievement.; A bird |
| Manawydan | Legendary son of LIyr. |
| Mandeep | Light of the mind; Lamp of mind |
| Manika | Jewel; Of jewels |
| Manisha | Desire/ wish; Goddess of mind, desire; Goddess of mind, intelligence, desire |
| Manjot | Light of your heart |
| Maredud | A great lord of the sea or ocean. |
| Marged | A Welsh form meaning pearl. |
| Margred | A Welsh form of pearl. |
| Maridith | Protector of the sea. |
| Marina | Pericles, Prince of Tyre Daughter to Pericles and Thaisa.; From The Sea |
| Marisa | Bitter; Mother of Daksa; Of The Sea; Variant of Maria.; Variant of Mary: Wished-for child; rebellion; bitter. |
| Marisha | Bitter; Dew.; Of the Sea; Sea of bitterness |
| Marta | Bitter.; Derives From Martha; Lady; From the name MARTHA; Spanish form of Martha lady; Variant of Martha: Lady. |
| Marya | Bitter.; Mark limit |
| Maryam | Bitter. Variant of Mary.; Name of Mother of Jesus; Variant of Mary bitter. |
| Mawrth | Welsh form of Mars, god of war. |
| 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 |
| Maygan | Variant of Margaret - pearl - based on the abbreviation Meg. |
| Mayuri | One who resembles a peacock. |
| Medyr | Legendary son of Medyredydd. |
| Meeghan | Variant of Margaret - pearl - based on the abbreviation Meg. |
| Meena | Blue Gem Stone; Fish. In Hindu mythology Meena is a name of the wife of Shiva.; Precious blue stone; Precious stone, fish; Starling. Heaven. Glass.; With Beautiful Eyes resembling a Fish; See Kayalvili |
| Meenakshi | Eye; Having beautiful eyes; One with fish- shaped, eyes, daughter of Kuber; A woman wil beautiful eyes; A woman wilth beautiful eyes |