The 1922 Cambridge by-election was a by-election held on 16 March 1922 for the British House of Commons constituency of Cambridge. The by-election was caused by the resignation on 7 November 1921 of the town's Conservative Party Member of Parliament (MP) Sir Eric Geddes, who had held the seat since 1917, and had come under criticism as Minister of Transport for the scale of nationalisation he had overseen, and over charges of departmental inefficiency. He chose to resign as both cabinet minister and MP.