| Gustaf Törnros | |
| Nationality: | Swedish |
| Birth Date: | 18 March 1887 |
| Birth Place: | Hållsta, Sweden |
| Death Place: | Stockholm, Sweden |
| Height: | 1.65m (05.41feet) |
| Weight: | 62kg (137lb) |
| Sport: | Athletics |
| Event: | 5000 m – marathon |
| Club: | Fredrikshofs IF, Stockholm |
| Pb: | 5000 m – 15:51.2 (1908) 10000 m – 33:31.6 (1910) Marathon – 3:01:00 (1906) |
| Show-Medals: | yes |
Gustaf Edvard Törnros (18 March 1887 – 2 April 1941) was a Swedish long-distance runner. He competed in the marathon at the 1906, 1908 and 1912 Summer Olympics with the best result of fourth place in 1906. Half of the participants, including Törnros, failed to finish the 1912 marathon due to the hot weather with temperatures exceeding 30 °C. Törnros won the national marathon title in 1911 and 1912.[1]