Last of the Summer Wine's fourth series originally aired on BBC1 between 9 November 1977 and 4 January 1978. All episodes from this series were written by Roy Clarke and produced and directed by Sydney Lotterby.

The fourth series was released on DVD in region 2 as a combined box set with series 3 on 26 July 2004. A box set featuring just series 4 was released for region 1 on 9 September 2008.