The Centrist Union of Democrats for Progress (French: Union centriste des démocrates de progrès, UCDP) was a parliamentary group in the French Senate.
Formed after the 1968 Senate elections, the UCDP succeeded the Popular Republicans and Democratic Centre (RPCD) group.
It was composed quasi-exclusively of members of the Centre des démocrates sociaux (CDS), the Christian democratic component of the Union for French Democracy.
[1] Alain Poher, who served twice as interim president of the Republic and long-time president of the Senate, was a member of the UCDP.