Bodajk FC Siófok, generally shortened to BFC Siófok, is a Hungarianfootball club based in Siófok, a small town on the shores of Lake Balaton. The club was founded in 1921 as Siófok SE. The word Bodajk in the club's name stems from a merger with Bodajk FC in 2005. The colours of the club are yellow and blue. BFC Siófok plays its home matches in the Révesz Géza Stadion which has a capacity of 10,500.
In the Hungarian cup final of 1984 BFC Siófok defeated Rába Vasas ETO Gyõr, known today as Győri ETO FC, 2-1 and thus achieved its only major success.
BFC Siófok has been a member of the first division, the Nemzeti Bajnokság I, from 1985 to 1994, 1996 to 2000 and from 2002 to 2004. After the 2006/07 season the club was again promoted to the NB I. However, this promotion was aided by the deduction of 8 points from main rivals Haladás Szombathely for their use of ineligible Players.