Seinäjoen Jalkapallokerho (or SJK Seinäjoki or SJK) is a Finnish football club from the city of Seinäjoki. The club is currently (2016) playing in the Veikkausliiga, the highest tier of the Finnish league system, of which they are the reigning champions, winning their first title in 2015.
SJK was formed in 2007 after the merger of TP-Seinäjoki and Sepsi-78. In 2015, SJK won their first ever Finnish Veikkausliiga title, ending HJK Helsinki's run of 6 titles in a row. SJK has one men's team and two boys' teams. In addition there is the successful Wall-Academy which is sponsored by Wallsport.
In 2010, it was reported for the first time that SJK were planning a new football stadium. Eventually, in autumn 2014 it was announced that the construction of SJK's new stadium would start soon. The construction began in summer 2015 and the new stadium was completed in June 2016. Stadium has a capacity of 5817 seats.
SJK play their friendlies and cup matches during the winter at Wallsport Areena which is an indoor training facility owned and operated by the team.