 1940 Newcastle upon Tyne North by-election

The Newcastle upon Tyne North by-election, 1940 was a parliamentary by-election held on 7 June 1940 for the British House of Commons constituency of Newcastle upon Tyne North.The seat had become vacant on when the constituency's Conservative Party Member of Parliament (MP), Sir Nicholas Grattan-Doyle, had resigned from Parliament on 10 April, aged 77.