Osku Maukonen (born 15 February 2007) is a Finnish professional footballer who plays as a goalkeeper for Ykkösliiga club Lahti.
On 14 November 2022, Maukonen signed his first professional contract with his hometown club FC Lahti on a three-year deal, at the age of 15. Maukonen made his debut in Veikkausliiga with FC Lahti on 3 June 2023, after being named in the starting line-up against Ilves. Maukonen became the youngest ever goalkeeper to debut in the highest level in Finland, at the age of 16 years, 3 months and 19 days. He also became the first player born 2007 to debut in the league. His contract was extended on 8 October 2024 until the end of 2026.
On 4 October 2023, Maukonen was named in the Finland U17 squad in the 2024 UEFA European Under-17 Championship qualification tournament. In the tournament Finland drew with Ukraine and Germany, 2âÂÂ2 and 1âÂÂ1 respectively, before winning Liechtenstein 3âÂÂ0, placing 2nd in the group and advancing to the Elite round. Maukonen played all three games.