JJK Jyväskylä, usually known more simply as JJK, was founded in its current form in 2000, although the club has been re-started several times and has a history which dates all the way back to the formation of Jyväskylän Palloilijat in 1923. Throughout the years, the team have primarily competed in the lower tiers of the Finnish league system, but have risen to new heights over the course of more recent times.
From 1923 until 1977, Jyväskylän Palloilijat competed between the third and sixth tiers of the league pyramid, struggling to find any consistency. In 1977, the team was renamed JYP-77 and rose briefly to the second tier. Then, in 1992, JYP-77 united with another team from the area, Jyväskylän Pallokerho to create JJK, which at that time stood for Jyväskylän Jalkapalloklubi. In 2000, the club was reborn once again, with its current name.
Since their last reboot, JJK have been able to achieve far greater results on the pitch. Ahead of the 2007 season, manager Ville Priha guided his side to the second tier. In their first season back in the division, they finished in 3rd place, before going on to win the league in 2008. As a result, they gained promotion to the top flight, marking the first time a team from Jyväskylä had reached that level. In 2012, the club reached another landmark, as they made their debut in a major European tournament by competing in the UEFA Europa League.
Babatunde Wusu is often seen as the club's biggest legend and the striker played a vital role in sealing promotion to the Veikkausliiga. Other notable former JJK players include Juha Pasoja and Mika Lahtinen.
The team's home matches are played at Harjun Stadion, which opened in 1926. The venue, which also hosts athletics events, is able to hold a maximum of 5,000 spectators.