Walter Faller (11 November 1909 – 3 February 2003) was a German politician of the Social Democratic Party (SPD) and member of the German Bundestag.
Faller was a member of the Bundestag from 4 December 1951, when he succeeded Gustav Herbig as ambassador, until 1972. He entered parliament via his party's state list for Baden-Württemberg in all federal elections between 1953 and 1969. He was also a member of the European Parliament from 29 November 1961 to 14 February 1973.