2015 Ykkönen

A total of ten teams will contest in the league, including five sides from the 2014 season, TPS who was relegated from Veikkausliiga, EIF and PS Kemi who promoted from Kakkonen after winning the promotion play-offs, VIFK, the winner of Kakkonen 2014 Western Group as a replacement for promoted Ilves and MP, the runner-up Kakkonen 2014 Eastern Group as a replacement for MYPA.

FC Viikingit and JIPPO were relegated from 2014 Ykkönen.

HIFK, the champion of 2014 Ykkönen, KTP, the runner-up of 2014 Ykkönen, and Ilves, which finished third in Ykkönen were promoted to the 2015 Veikkausliiga.