2009 League of Ireland Premier Division

[2] On the final day of the regular season Bohemians were crowned League of Ireland champions for the eleventh time in the club's history after drawing 1–1 with Bray Wanderers at the Carlisle Grounds.

Derry City were accused of making extra payments to players using unofficial secondary contracts.

This was against league rules which placed limits on the amount clubs could spend on players' wages.

Cork City had been in serious financial difficulties for several seasons and its holding company was eventually wound up by the High Court.

[2][4][5][6][7] The ninth and tenth placed teams from the Premier Division, Drogheda United and Bray Wanderers, played off after the regular season was completed.