| Stephanie Tregartten | |
| Fullname: | Stephanie Gisel Tregartten Fontes |
| Birth Date: | 1997 10, df=yes |
| Birth Place: | Montevideo, Uruguay |
| Position: | Defender |
| Currentclub: | Paysandú |
| Years1: | 2012–2013 |
| Clubs1: | Sud América |
| Years2: | 2017– |
| Clubs2: | Paysandú |
| Nationalyears1: | 2012 |
| Nationalteam1: | Uruguay U17 |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
| Nationalyears2: | 2018– |
| Nationalteam2: | Uruguay |
| Nationalcaps2: | 4 |
| Nationalgoals2: | 0 |
| Ntupdate: | 12 April 2018 |
Stephanie Gisel "Colo" Tregartten Fontes (born 13 October 1997) is a Uruguayan footballer who plays as a defender for Paysandú FC and the Uruguay women's national team.
Tregartten represented Uruguay at the 2012 FIFA U-17 Women's World Cup. At senior level, she played the 2018 Copa América Femenina.