| Marciane | | - | Portuguese (Brazilian) | |
| Marciano | | - | Portuguese, Spanish, Italian | |
| Marcie | | MAHR-see | English | |
| Marcin | | MAHR-cheen | Polish | |
| Marcio | | MAHR-thyo (Spanish), MAHR-syo (Latin American Spanish) | Spanish | |
| Marco | | MAHR-ko (Italian, Spanish, Dutch) | Italian, Spanish, Portuguese, German, Dutch | |
| Marcos | | MAHR-kos (Spanish), MAR-koos (Portuguese) | Spanish, Portuguese | |
| Marcus | | MAR-kuws (Ancient Roman, Biblical Latin), MAHR-kəs (English) | Ancient Roman, Biblical Latin, English, Swedish, Norwegian, Danish | |
| Marcy | | MAHR-see | English | |
| Marduk | | MAHR-dook (English) | Near Eastern Mythology | |
| Mare | | MAH-re (Croatian) | Estonian, Slovene, Macedonian, Croatian | |
| Mared | | - | Welsh | |
| Maredudd | | mah-RE-deeth | Welsh | |
| Maree | | - | English (Rare) | |
| Mareike | | mah-RIE-kə (German) | Frisian, German | |