K. Boom F.C. (Koninklijke Boom Football Club) was a Belgian football club founded as Rupel FC Boom in 1908 in Boom, near Antwerp. It changed its name in 1913 to Boom Football Club. It received the matricule n°58.
It last played in the Belgian First Division in the 1992/1993 season.
Due to financial, sporting and home ground difficulties,[1] the club merged with neighbours S.K. Rupel in 1998 to form K Rupel Boom FC (matricule n°2138) and the matricule n°58 was subsequently erased.