Fudbalski klub Jedinstvo Brčko (Serbian Cyrillic: Фудбалски клуб Јединство Бpчкo) was a professional association football club, founded in 1919 in the city of Brčko that is situated in the Brčko District, Bosnia and Herzegovina. The club competed in the First League of the Republika Srpska, a second-tier competition in Bosnia and Herzegovina. The club played its home matches on the Gradski stadion (City Stadium) in Brčko, which has a capacity of 16,000 seats.
Jedinstvo used to compete in the Yugoslav Second League before the break-up of SFR Yugoslavia. They were promoted to the second league as champions of the third league in 2015.
As of 13 April 2022, Jedinstvo has been disbanded and is no longer competing in any football tournament, seemingly caused by a lack of funds and enthusiasm for the club.