The Ykkönen Finnish football club's 2010 season began on 18 April 2010 and ended on 16 October 2010. The winner team will qualify directly for promotion to Veikkausliiga, the second has to play a play-off against the 13th from Veikkausliiga to decide who plays in Veikkausliiga 2011. The bottom 3 teams will qualify directly for relegation to Kakkonen.