Graham Charles Dewes (born 24 January 1982 in Suva) is a former Fijian rugby union player.

Dewes played as a prop and gained prominence during his international career, particularly during the 2007 Rugby World Cup.

His memorable moment came when he scored the winning try against Wales, helping Fiji reach the quarter-finals of the tournament for the first time since 1987.

Dewes' performance in the World Cup and his overall impact on Fijian rugby have made him a notable figure in the sport.

[1] Fiji lost that quarter final to eventual winners South Africa despite drawing 20-all for a period in the 2nd half.