| Sebastian Ylönen | |
| Birth Date: | 3 July 1991 |
| Birth Place: | Rouen, France |
| Height M: | 1.86 |
| Weight Kg: | 82 |
| Position: | Goaltender |
| Catches: | Left |
| League: | LM |
| Team: | Jokers de Cergy-Pontoise |
| Former Teams: | Gothiques d'Amiens Dragons de Rouen Boxers de Bordeaux Lukko Anglet Hormadi Élite Rapaces de Gap |
| Ntl Team: | FRA |
| Draft: | Undrafted |
| Career Start: | 2009 |
Sebastian Ylönen (born 3 July 1991) is a French-Finnish ice hockey goaltender for the Jokers de Cergy-Pontoise and the French national team.[1]
He represented France at the 2019 IIHF World Championship.[2] Ylönen also holds Finnish citizenship.[3]
Ylönen was born in Rouen, France, to a Finnish father and a French mother. His father is the former ice hockey player Petri Ylönen.