Adamu is a surname. People with this surname include:
- Semira Adamu (born 1978), a Nigerian refugee.
- Abdullahi Adamu (born 1945), a Nigerian politician.
- Baba Adamu (born 1979), a Ghanaian footballer.
- Charles Adamu (born 1977), a Ghanaian boxer.
Adamu may also refer to the forename of:
- Adamu (lived c. 2400 BCE — c. 2300 BCE), an Assyrian king.