Toni Tuomas Keränen (born 16 June 1998) is a Finnish javelin thrower.

He is two-time Finnish Athletics Championships medallist, the Finnish national record holder in the U18 javelin throw, and he has represented Finland at the World Athletics Championships and other international competitions.

[3] In August 2015, Keränen threw a new Finnish record for his age group of 83.29 m in his hometown.

[6] He won silver the same year at the Finnish Athletics Championships and was eliminated in qualification at the Munich European Championships with a result of 71.24 m.[5] Keränen has also played competitive pesäpallo (Finnish baseball) and competed in other athletics events, winning youth national championships in the long jump, 100 metres, and pentathlon.

[4] Since fall 2021, Keränen has been coached by Petteri Piironen [fi].