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Constituency

Great Grimsby and Cleethorpes

At a glance

Great Grimsby and Cleethorpes is a UK parliamentary constituency in Yorkshire and The Humber, currently represented in the House of Commons by Melanie Onn, a Labour MP. Melanie Onn has represented the seat since 4 Jul 2024. At the 2024 general election it was fairly safe, won by a majority of 4,803 votes (13.1%), ranking #298 most marginal of 650 seats. Their Commons voting participation while representing this constituency is 73.6 %, compared with a Commons average of 72.7 %. Browse all seats on the UK constituencies index.

Constituency snapshot

Current representation signals for this constituency.

Current MP Melanie Onn
Photograph of Melanie Onn MP ID 4464
Current party
Lab Labour
MP since 4 Jul 2024
Current Commons representation
Voting participation 73.6 %
423 of 575 eligible divisions
Region Yorkshire and The Humber
Electoral region of England, Scotland, Wales or Northern Ireland
Parliament ID 4070
Imported constituency identifier
Recent votes shown 10
Latest divisions listed below

Boundary

Imported constituency boundary for Great Grimsby and Cleethorpes.

Map

MP voting summary

How Melanie Onn has voted since becoming MP for this constituency.

Voted in 423 of 575 eligible divisions (73.6 %).

73.6 %

Participation

210

Aye

213

No

1

Against party

Aye / No split Ayes 210 / Noes 213

Recent divisions

Division Vote
Draft Code of Practice on Electronic and Workplace Ballots for Statutory Trade Union Ballots
Trade Work / Employment
Aye
Draft Trade Unions (Permissible Means of Voting) and Employment Rights (Unfair Dismissal) (Amendment) Order 2026
Trade Work / Employment
Aye
Public Office (Accountability) Bill Report Stage: Amendment 19 No
Public Office (Accountability) Bill Report Stage: Amendment 199 No
Public Office (Accountability) Bill Report Stage: Amendment 3 No
Immigration and Asylum Bill: Second Reading
Migration
Aye
Immigration and Asylum Bill: Reasoned Amendment to Second Reading
Migration
No
Draft Children’s Wellbeing and Schools Act 2026 (Establishment of Schools) (Consequential Amendments) Regulations 2026
Education
Aye
Draft Supply of Machinery (Safety) (Amendment etc.) and the EU Machinery Regulation (Enforcement etc. in Northern Ireland) Regulations 2026 Aye
Draft Town and Country Planning (Discharge of Local Planning Authority Functions) (England) Regulations 2026 Aye
View full voting record →

Election results

How this seat has voted at general elections and by-elections. All UK election results →

Fairly safe — won by 13.1% in 2024

Majority of 4,803 votes · #298 most marginal of 650 seats.

4 July 2024

48 % turnout · maj 4,803
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%)
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%)

More seats in Yorkshire and The Humber

Other UK parliamentary constituencies in Yorkshire and The Humber — explore their MPs and voting records.

Barnsley North Dan Jarvis · Lab Barnsley South Stephanie Peacock · Lab Beverley and Holderness Graham Stuart · Con Bradford East Imran Hussain · Lab Bradford South Judith Cummins · Lab Bradford West Naz Shah · Lab Bridlington and The Wolds Charlie Dewhirst · Con Brigg and Immingham Martin Vickers · Con Calder Valley Josh Fenton-Glynn · Lab Colne Valley Paul Davies · Lab Dewsbury and Batley Iqbal Mohamed · Ind Doncaster Central Sally Jameson · Lab

Browse all UK constituencies →

Constituency source UK Parliament Members API
Member source UK Parliament member record

FAQs

Who is the MP for Great Grimsby and Cleethorpes?

Melanie Onn is the current MP for Great Grimsby and Cleethorpes. Source

Which party currently holds Great Grimsby and Cleethorpes?

Great Grimsby and Cleethorpes is currently represented by Melanie Onn of Labour. Source

What is the Parliament constituency ID for Great Grimsby and Cleethorpes?

Great Grimsby and Cleethorpes's imported Parliament constituency ID is 4070. Source

Where can I find the member profile for Great Grimsby and Cleethorpes?

The current MP profile for Great Grimsby and Cleethorpes is linked from this page and records party, roles, interests, election data, and voting record where available. Source

Can the MP for Great Grimsby and Cleethorpes change?

Yes. Constituency representation can change after a general election, by-election, resignation, recall petition, or other parliamentary change. Re-running the current MP import refreshes this data. Source

Where does Great Grimsby and Cleethorpes data come from?

Constituency and current MP data is imported from the UK Parliament Members API. Source