| Brett Thompson | |
| Birth Date: | 17 August 1990 |
| Birth Place: | Tempe, Arizona, United States |
| Height: | 1.93 m |
| Weight: | 102 kg |
| Ru Position: | Wing, Fullback |
| Years1: | 2018 |
| Clubs1: | San Diego Legion |
| Apps1: | 1 |
| Points1: | 0 |
| Ru Clubupdate: | 1 January 2021 |
| Repyears1: | 2009 |
| Repteam1: | United States U20 |
| Repcaps1: | 4 |
| Reppoints1: | 15 |
| Repyears2: | 2016 |
| Repteam2: | USA Selects |
| Repcaps2: | 3 |
| Reppoints2: | 0 |
| Repyears3: | 2014–2015 |
| Repteam3: | United States |
| Repcaps3: | 6 |
| Reppoints3: | 5 |
| Ru Ntupdate: | 12 December 2021[1] |
| Ru Sevensnationalyears1: | 2012–2021 |
| Ru Sevensnationalteam1: | United States |
| Ru Sevensnationalcomp1: | 35 |
| Ru Sevensupdate: | 12 December 2021 |
| School: | Marcos de Niza High School |
| University: | University of Arizona |
Brett Thompson (born August 17, 1990) is an American former rugby union player. He was named in United States' squad for the 2015 Rugby World Cup.[2] He plays as a wing or fullback in fifteens, and as a forward in sevens. He retired from professional rugby in December 2021.[3]