Aku (given name)
Aku is a given name, a Finnish version of the name Augustus. Notable people with the name include:
- Aku Alho, Finnish ice hockey player
- Aku Hirviniemi, Finnish actor
- Aku Kadogo, American choreographer, director, actress, and educator
- Aku Kauste, Finnish curler
- Aku Kestilä, Finnish ice hockey player
- August "Aku" Kiuru, Finnish cross-country skier and Olympic medalist
- Aku Korhonen, Finnish actor
- Aku Louhimies, Finnish film director and screenwriter
- Aku Päiviö, Finnish Canadian journalist, poet and socialist
- Aku Partanen, Finnish racewalker
- Aku Pellinen, Finnish racing driver
Fictional characters
- Aku Ankka,, a Finnish weekly Disney comics magazine
- Aku, the main antagonist of the whole Samurai Jack series