Tårnby Boldklub (or Taarnby Boldklub, both pronounced [ˈtsʰɒːnˌpyˀ ˈpʌltkʰlup]) were a Danish football club based in Tårnby on Amager, which played their home games at . The club was formed on 21 April 1935 as Arbejdernes Idræts Klub Tårnby (AIK Tårnby) and became member of (DAI) on 1 May 1935. After nearly 10 years in DAI, it was decided at a general meeting on 16 January 1944 to change their membership to Københavns Boldspil-Union (KBU) and in this regard change their name to Tårnby Boldklub. The club became an extraordinary member of KBU on 1 July 1944 and a full member in February 1945 and started their first season 1944–45 under the new football association by playing in a newly created 'C-række' consisting of 8 clubs. The club enjoyed rivalries against neighbouring clubs Kastrup Bol