Ilivasi Sevia Tabua Tamanivalu (born 30 September 1964 in Naivicula) is a Fijian former rugby union footballer who played at international level for both Fiji and Australia as a flanker.

He was raised in a family of seven siblings five boys and two girls, his son's named Ilivasi Noah Taminivalu.

He spent the first 12 years of his childhood in the Lau group as his father was a teacher at one of the schools on the chiefly island.

Ilivasi started school at Mabula, Cicia in Lau before his family moved to the mainland in the 1970s.

He comes at the tail end of a succession of expatriates including George Simpkin, Brad Johnstone, Greg Smith, Mac McCallion and Pivac who left in January 2007.