Aker is an English, and Turkish surname. People with the name include:
- Brian Aker (born 1972), American open-source hacker
- Jack Aker (born 1940), American baseball player
- Mamdouh Al Aker (born 1943), Palestinian physician and politician
- Mustafa Ertuğrul Aker (1892–1961), Turkish soldier
- Raymond Aker (1920–2003), British navigator and historian
- Şefik Aker (1877–1964), Turkish soldier
- Tim Aker (born 1985), British politician