The Centrist Union group (French: groupe Union centriste, abbreviated UC) is a centrist parliamentary group in the Senate uniting members of the Union of Democrats and Independents (UDI) and Democratic Movement (MoDem), as well as the Centrist Alliance (AC), a former component of the UDI. The group was historically associated with the Popular Republican Movement (MRP) and later the Democratic Centre (CD), Centre of Social Democrats (CDS), and Union for French Democracy (UDF). Most recently, from 2012 to 2017, it was known as the Union of Democrats and Independents – UC group (French: groupe Union des démocrates et indépendants – UC, abbreviated UDI–UC).