| Kaarlo Tuominen | |
| Full Name: | Kaarlo Jalmari Tuominen |
| Birth Date: | 9 February 1908 |
| Birth Place: | Somerniemi, Finland |
| Death Date: | 20 October 2006 (aged 98) |
| Death Place: | Lieto, Finland |
| Height: | 177 cm |
| Weight: | 66 kg |
| Sport: | Athletics |
| Event: | 1500 m, 5000 m, steeplechase, |
| Pb: | 1500 m – 3:58.1 (1933) 5000 m – 15:09.2 (1930) 3000 mS – 9:06.8 (1936) |
| Club: | Helsingin Poliisi-Voimailijat, Helsinki |
| Show-Medals: | yes |
Kaarlo Jalmari Tuominen (9 February 1908 – 20 October 2006) was a Finnish runner. He had his best achievements in the 3000 m steeplechase, winning a silver medal at the 1936 Olympics and placing fourth at the 1938 European Championships. He worked as a police officer in Helsinki.