Aleksi Paananen (born 25 January 1993) is a Finnish professional footballer who plays as a midfielder for Veikkausliiga club AC Oulu.

[2] On 1 November 2018, Inter Turku announced the signing of Paananen for the 2019 season.

On 2 November 2022, Paananen signed a contract with HJK for the 2023 season, with an option for 2024.

[4] On 5 November 2023, it was announced that Paananen will leave HJK after the season.

[2] In November 2023, it was announced that Paananen had signed with fellow Veikkausliiga side AC Oulu on a two-year deal with an option for an additional year, starting in 2024.