Samuela Ravanua Domoni Junior (25 December 1968 – 24 July 2021) was a Fijian former rugby union footballer and the former national coach of the Fiji national rugby union team.

He made his test debut for Fiji in December 1990, against Hong Kong.

After retiring from rugby, he coached the Combined Penrith and Zion Lions between 1999 and 2000.

Between 2002–03, he coached The Entrance rugby club based in New South Wales.

He was appointed the Fiji head coach in 2010 after his predecessor, Ilivasi Tabua was fired.