| Mercedes Román | |
| Sport: | Sprinting |
| Event: | Pentathlon |
| Birth Date: | 26 September 1945 |
| Birth Place: | Mexico City, Mexico |
Mercedes Román Casillas (26 September 1945 – 17 July 2024) was a Mexican athlete who competed in the pentathlon and a number of individual events. She competed in the women's 4 × 100 metres relay, long jump, and pentathlon at the 1968 Summer Olympics. Román finished fourth in the 100 metres hurdles and sixth in the pentathlon at the 1971 Pan American Games.[1] Román died on 17 July 2024, at the age of 78.[2]