Robert Bach (7 December 1901 – 10 June 1976) was a German politician of the Social Democratic Party (SPD) and former member of the German Bundestag.
Bach had been a member of the SPD since 1920. Bach was a member of the German Bundestag from 27 October 1959, when he succeeded Rudolf Recktenwald as a member of parliament, until 1961. He entered the parliament via the state list of the SPD in Saarland.