| Height: | 168 cm |
| Weight: | 64 kg |
| Sport: | Athletics |
| Event: | Race walking |
| Pb: | 50 km – 4:03:59 (2013) |
| Show-Medals: | yes |
Mario Alfonso Bran (born 17 October 1989) is a Guatemalan race walker. He competed in the 50 km event at the 2016 Summer Olympics and finished 42nd. Bran placed second over 20 km at the Central American Race Walking Championships in 2012–14.