Tuomas Ollila

Tuomas Ollila (born 25 April 2000) is a Finnish professional footballer who plays as a left-back for club Guingamp and the Finland national team.

Early career Born in Helsinki, Ollila was raised in Paloheinä and Pakila neighbourhoods. He started playing football in a youth program of Helsingin Palloseura (HPS) when aged four. He played in the youth sector of Käpylän Pallo (KäPa) since aged nine, and HJK Helsinki since 2017. During the 2018 season, Ollila made his senior debut with Klubi 04, the reserve team of HJK, playing in the second-tier Ykkönen. Ollila also represented HJK Youth in the 2018–19 UEFA Youth League.

Club career KTP In January 2019, Ollila joined Kotkan Työväen Palloilijat (KTP) in Ykkönen, and spent two seasons in Kotka, ultimately winning a promotion to Veikkausliiga with the club after the 2020 season.

Ilves On 1 January 2021, he moved to Ilves in premier division Veikkausliiga on a free transfer, after his contract with KTP had expired. During two seasons with Ilves, Ollila made 50 appearances in all competitions combined, scoring 10 goals.

HJK Helsinki Ollila transferred from Ilves back to his former youth club HJK Helsinki on 3 January 2023 on a two-year deal. He made his debut and scored his first goal on 27 January in a 3–0 League cup win against IFK Mariehamn.

Paris FC On 29 January 2024, Ollila signed with French club Paris FC in Ligue 2, on a deal until June 2027, for an undisclosed transfer fee, rumoured to be €400,000. On 10 March 2024 in his second appearance, Ollila scored his first goal for his new club, a winning goal in a 1–0 away win against Caen. On 29 October 2025, he made his Ligue 1 debut in a match against Lyon.

Guingamp On 27 August 2026, Ollilia joined Ligue 2 club Guingamp on a one-year contract, with an option for a second year.

International career Ollila received his first call-up to Finland senior national team in November 2022, for friendly matches against Norway and North Macedonia. He made his debut against North Macedonia on 17 November.

Personal life Ollila has two brothers who are also football players, the elder Juuso Ollila and his twin Akseli Ollila, both of whom play for MPS/Atletico Malmi. Growing up, he also played ice hockey with HIFK, before choosing football over it when aged 13. Veikkausliiga Defender of the Year: 2023