Sunia Koto Vuli (born 15 April 1980 in Suva) is a Fijian rugby union player. He plays as a hooker. He played for the Fijian teams Highlanders, and Fiji Warriors, London Welsh in England, and currently Narbonne. He played his first game for Fiji, on 3 June 2005, against New Zealand Māori. He was a member of his country's squad at the 2007 Rugby World Cup finals, playing in four games. Koto had 18 caps for his side by the end of the competition.