Nacanieli Seru (born 20 July 1969 in Gau) is a Fijian rugby union footballer.
A long-time member of the Suva squad, Naca won the selectors over with his aggressive front-row efforts at the trials that May.
He got his first taste of action in Fiji's opening match of 2003 – a narrow one-point loss to the ACT Brumbies in Canberra, and later he made his Test debut coming on as a replacement against Argentina.
Seru also played rugby league in Australia before featuring for the Fiji Bati side from 1994 - 1996.
He was a member of the Fiji team to the 2003 Rugby World Cup.