| Mario Sánchez Yantén | |
| Fullname: | Mario Sánchez Yantén |
| Birth Date: | 22 July 1956 |
| Birth Place: | Chile |
| Internationalyears1: | 1994-2001 |
| Confederation1: | FIFA |
| Confederation2: | CONMEBOL |
| Internationalrole1: | Referee |
| Internationalrole2: | Referee |
Mario Sánchez Yantén (born 22 July 1956) is a retired Chilean football referee.
He refereed two matches in the 1998 FIFA World Cup in France: Nigeria's 1–0 win over Bulgaria, and South Africa's 2–2 draw with Saudi Arabia. He also officiated the 2000 Summer Olympics in Sydney and the 1998 Intercontinental Cup final.