Bodajk FC Siófok, or generally short 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 component 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, today's Győri ETO FC with 2:1 and thus achieved its hitherto 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 season 2006/07 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.