Action 21 Charleroi was a futsal club based in Charleroi, Belgium.

The club was founded in 1999, Charleroi Garenne and FCS Sambreville merged in Action 21 Charleroi.

Because of insufficient money, they merged with "FC Chatelineau" and became "Charleroi 21" Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.

This article about sport in Belgium is a stub.