Great Grimsby and Cleethorpes is a constituency in the Yorkshire and The Humber region of England. The seat has been held by Melanie Onn (Labour) since July 2024.

Constituency boundary map

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2024 General Election

ResultLab Gain

Election date4 Jul 2024

Turnout36,619

Majority4,803

Candidate	Party	Votes	Share
Melanie Onn	Labour	15,336	41.9%
Oliver Freeston	Reform UK	10,533	28.8%
Lia Nici	Conservative	8,269	22.6%
Ed Fraser	Green Party	1,115	3.0%
John Lawson	Liberal Democrat	1,036	2.8%
Mark Gee	Trade Unionist and Socialist Coalition	222	0.6%
Christopher Stephenson	Social Democratic Party	108	0.3%