The 1946 Combined English Universities by-election was a parliamentary by-election held on 18 March 1946 for the British House of Commons constituency of Combined English Universities. There was no Labour Party candidate, which did not occur again in a Great Britain by-election in the UK until the 2008 Haltemprice and Howden by-election. It was the penultimate election in a university constituency to the British Parliament and the final one to occur in England, with all university constituencies abolished in 1950.