| Birth Date: | 1 March 1973 |
| Birth Place: | Haasini, Tonga |
| Height: | 1.78 m |
| Weight: | 111 kg |
| Ru Position: | Flanker |
| Clubs1: | San Francisco Golden Gate |
| Repyears1: | 1998–2007 |
| Repcaps1: | 20 |
| Reppoints1: | 10 |
Fifita Mounga (born 1 March 1973 in Haasini, Tonga) is a former American rugby union back row forward. He was a member of the United States national rugby union team that participated in the 2007 Rugby World Cup.[1]