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.
They have won the Campeonato Rondoniense twice.
The club was founded on 1 January 1982. União Cacoalense won the Campeonato Rondoniense in 2003 and in 2004.