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 Taarnby Stadium.

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.

[2] 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.

In 2002 the club together with Kastrup Boldklub became a part of the superstructure Amager United.

On 1 January 2009, the club merged with neighbouring Amager Boldklub af 1970 (AB70), and the new association was named AB Tårnby.