Sociedade Esportiva União Cacoalense, commonly referred to as União Cacoalense (Brazilian Portuguese: [uniˈɐ͂w kakuaˈlẽjsi]), is a Brazilian football club based in Cacoal, Rondônia.

The club competes in the Campeonato Rondoniense Série A, the top division in the Rondônia state football league system.

[2] União Cacoalense won the Campeonato Rondoniense in 2003 and in 2004.

Sociedade Esportiva União Cacoalense play their home games at Estádio Aglair Tonelli Nogueira.

[2] The stadium has a maximum capacity of 5,000 people.