Darren Sweetnam is an Irish rugby union player for French Pro D2 club Oyonnax. He plays as a wing but can also play fullback. Sweetnam is also a former inter-county hurler with Cork and has played underage hockey for Ireland.

Oyonnax Rugby is a French professional rugby union club based in Oyonnax and competing in the Top 14. Founded in 1949 and located in the Ain montainous department, the club plays its home matches at the 11,400-capacity Stade Charles-Mathon, the highest stadium in the league at 532 metres (1,745 ft) and wears black and red jerseys.