Tatafu is a given name and surname. Notable people with the name include:
Given name
edit- Tatafu Moeaki (born 1972), Tongan politician
- Tatafu Polota-Nau (born 1985), Australian rugby union player
Surname
edit- Fepikou Tatafu (born 1975), Tongan former rugby union player
- Lusitania Tatafu (born 1998), Tongan recurve archer
- Mason Tatafu (born 2002), Australian footballer
- Ray Tatafu (born 1995), New Zealand rugby union player
- Tevita Tatafu (born 1996), Japanese rugby union player