Sebastian Mila (born 10 July 1982) is a Polish former professional footballer who played as an attacking midfielder, who is currently the assistant coach of the Poland national team.

Mila progressed into the Lechia Gdańsk first team during the 1999–2000 season, making his professional debut against Świt Nowy Dwór Mazowiecki in March 2000.

Mila played in every game of the team's European adventure in the UEFA Cup, beating FK Atlantas and Hertha Berlin before a second round tie with Manchester City.

After the 0–0 draw at home, it was the away leg which brought Mila to the attention of European and Polish football fans.

Mila played 12 of the remaining 15 fixtures of the season in the Ekstraklasa as he helped the team stay above the relegation zone.

He instantly became a key player for Śląsk, and helped the team to win the Ekstraklasa Cup in the 2008–09 season, as well as an impressive 6th place in the league.

After qualifying for the UEFA Europa League, Śląsk managed to reach the qualification playoff before losing the game to Rapid București.

While leading the team to a Polish Super Cup win, beating Legia Warsaw, and to a third-place finish in the Ekstraklasa, Mila played 40 games and scored 10 goals in all competitions.

After the team's fortunes and financial status declining, the decision was made to sell Mila during the winter transfer window.

During much of his time at Śląsk Wrocław, Mila often wore a Lechia Gdańsk sweat band on his right wrist during games.

[5][6] Mila instantly became the Lechia captain, and played 16 games in his first half season back with the team.

He was selected to the 23-men national team for the 2006 FIFA World Cup finals in Germany, but did not make an appearance in any of the games.