Raiffeisen Zentralbank Österreich A.G. (RZB) was a significant bank in Austria and the central institution of the Raiffeisen Banking Group (RBG) until its merger into its subsidiary Raiffeisen Bank International (RBI) in 2017.

The Raiffeisen Banking Group is a group of cooperative banks in Austria. The Austrian Raiffeisen banks are not consolidated under a single parent entity but are financially linked through a common institutional protection scheme and deposit guarantee scheme. The group's international operations, by contrast, are consolidated under Raiffeisen Bank International (RBI).