| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Mason | MAY-sən | English | ||
| Masterman | MAS-tər-mən | English (Rare) | ||
| Masud | - | Bengali | ||
| Mat | MAT | English | ||
| Mathew | MATH-yoo | English | ||
| Mathilda | mə-TIL-də (English, Swedish) | English, Swedish, Ancient Germanic | ||
| Matilda | mə-TIL-də (English), MAH-teel-dah (Finnish) | English, Swedish, Finnish | ||
| Matt | MAT | English | ||
| Matthew | MATH-yoo (English) | English, Biblical | ||
| Mattie | MAT-ee | English | ||
| Matty (1) | MAT-ee | English | ||
| Matty (2) | - | Medieval English | ||
| Maud | MAWD (English) | English, Dutch | ||
| Maude | MAWD | English | ||
| Maudie | MAWD-ee | English |