Mamadu, pronounced as mah-mah-doo (/mɑˈmɑdu/), is a male name with origins in West Africa. It is commonly used among the Malinke people of Guinea and Mali. The name Mamadu holds cultural significance and is often given to boys born on Mondays, as "Mamadu" translates to "Monday" in the Malinke language. This name has gained popularity in recent years, particularly in the United States, where it ranked 12,237th in 2017 and 12,101st in 2014. Mamadou is a variation of this name that is also used.
| Mamadú Iaia Djaló - Mamadu Iaia Djalo was a Guinea-Bissau politician who founded and led the New Democracy Party. |
| Mamadu Ture Kuruma is a Bissau-Guinean military leader who led the 2012 coup and faced a United Nations travel ban. |
| Mamadu Candé - Muhammad Cande is a professional footballer from Guinea-Bissau who plays as a left-back for Operario. |
| Mamadu Saliu Djaló Pires - Mamadu Saliu Djalo Pires is a former foreign minister of Guinea-Bissau. |