Jiri Koski (born 20 May 1995) is a Finnish professional football player who plays as a goalkeeper for Veikkausliiga side KTP.
[3] Koski debuted in Veikkausliiga with HJK Helsinki on 17 October 2016, in a 3–1 win against Ilves.
[4] Since 2021, Koski has played for IF Gnistan in second-tier Ykkönen, and was the team captain in the 2023 season.
[5][6] On 19 May 2024, he made his first Gnistan appearance in the highest level, and only his second-ever appearance in Veikkausliiga, keeping a clean sheet in a 0–0 draw against Kuopion Palloseura (KuPS).
[7] Koski returned to KTP for the 2025 Veikkausliiga season.