| Birth Date: | 1966 4, df=yes |
| Birth Place: | Apia, Samoa |
| Weight: | 209 lb |
| Position: | Centre |
| Years1: | 1989-1991 |
| Years2: | 1993 |
| Years3: | 2000 |
| Years4: | 2006 |
| Clubs1: | Oriental Rongotai |
| Clubs2: | NikoNikoDo[1] |
| Clubs3: | Otahuhu[2] |
| Clubs4: | East Tamaki RFC |
| Province1: | Wellington |
| Provinceyears1: | 1989-91 |
| Provinceapps1: | 17 |
| Provincepoints1: | 20 |
| Super1: | Wellington Hurricanes[3] |
| Superyears1: | 1996 |
| Repyears1: | 1988-1996 |
| Repyears2: | 1993 |
| Repcaps1: | 37 |
| Reppoints1: | 36 |
| Coachteams1: | East Tamaki RFC[4] |
| Coachyears1: | 2006 |
Tupo Fa'amasino (born 13 April 1966, in Apia) is a former Samoan rugby union player. He played as a centre.
His first match with Samoa was in the match against Wales at Cardiff, on 12 November 1988, during the 1988 Western Samoa tour in Wales. He was part of the 1991 and 1995 World Cups.[5] He also played for Japan twice in the 1993 Japan tour in Argentina and Wales, in the match against Wales on 16 October 1993. His last international match for Samoa was in a test match against Fiji at Suva, on 20 July 1996.[6]