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Official portrait of Melanie Onn

Melanie Onn

Labour MP for Great Grimsby and Cleethorpes, since 4 July 2024

Melanie Onn is the Labour MP for Great Grimsby and Cleethorpes, and has been an MP continually since 4 July 2024.

Contact them on the parliamentary site →

Scorecard

73.6% Attendance Turns up more often than most MPs who vote
423 Votes cast out of 575 divisions
152 No vote recorded absent, abstaining, paired or unable to attend
1 Against their own party divisions where they voted the other way to most Labour MPs
6 Interests declared none at £5,000 or more
505 Debates spoken in 503 written questions tabled

Ranked 298 of 638 MPs for attendance. The median of MPs who vote is 72.3%. Ministers and front-benchers vote less often than backbenchers for reasons of office rather than absenteeism, and Parliament does not publish reasons for any absence — the ranking is a starting point for a question, not an answer to one.

Voting record

575 divisions since they took their seat, newest first.

DateQuestionTheir voteResult
15 Jul 2026 Draft Code of Practice on Electronic and Workplace Ballots for Statutory Trade Union Ballots deferred division Aye 330–109
15 Jul 2026 Draft Trade Unions (Permissible Means of Voting) and Employment Rights (Unfair Dismissal) (Amendment) Order 2026 deferred division Aye 330–109
14 Jul 2026 Public Office (Accountability) Bill Report Stage: Amendment 19 No 104–412
14 Jul 2026 Public Office (Accountability) Bill Report Stage: Amendment 199 No 102–409
14 Jul 2026 Public Office (Accountability) Bill Report Stage: Amendment 3 No 93–323
13 Jul 2026 Immigration and Asylum Bill: Second Reading Aye 264–90
13 Jul 2026 Immigration and Asylum Bill: Reasoned Amendment to Second Reading No 97–358
8 Jul 2026 Draft Town and Country Planning (Discharge of Local Planning Authority Functions) (England) Regulations 2026 deferred division Aye 283–182
8 Jul 2026 Draft Supply of Machinery (Safety) (Amendment etc.) and the EU Machinery Regulation (Enforcement etc. in Northern Ireland) Regulations 2026 deferred division Aye 317–103
8 Jul 2026 Draft Children’s Wellbeing and Schools Act 2026 (Establishment of Schools) (Consequential Amendments) Regulations 2026 deferred division Aye 369–102
7 Jul 2026 Opposition Day: Early release of prisoners No vote 115–0
6 Jul 2026 National Security (State Threats) Bill: motion to agree to Lords Amendment 1 Aye 394–85
1 Jul 2026 Taxation (Energy and Vehicles) Bill Committee: New Clause 5 No 177–308
1 Jul 2026 Taxation (Energy and Vehicles) Bill Committee: New Clause 4 No 173–282
1 Jul 2026 Taxation (Energy and Vehicles) Bill Committee: New Clause 2 No 80–281
1 Jul 2026 Draft Employment Tribunals Extension of Jurisdiction (England and Wales) (Amendment) Order 2026 deferred division No vote 318–107
1 Jul 2026 Draft Employment Tribunal (Extension of Time Limits) (Miscellaneous Amendments and Transitional Provisions) Regulations 2026 deferred division No vote 322–107
24 Jun 2026 Draft Climate Change Act 2008 (Credit Limit) Order 2026 Aye 330–93
24 Jun 2026 Draft Climate Change Act 2008 (International Aviation and International Shipping) Regulations 2026 Aye 329–94
24 Jun 2026 Draft Carbon Budget Order 2026 Aye 332–94
24 Jun 2026 Customs (Tariff and Miscellaneous Amendments) (No. 4) Regulations 2026 deferred division Aye 323–160
23 Jun 2026 Opposition Day: Puberty blockers No 112–283
23 Jun 2026 Opposition Day Motion: Defence spending and readiness - Prime Minister's Amendment Aye 294–110
23 Jun 2026 Opposition day: Defence spending and readiness No 108–307
22 Jun 2026 Armed Forces Bill Report Stage: Amendment 11 No 171–322

Declared financial interests

Quoted in full from the Register of Members' Financial Interests. Entries where the largest figure is £5,000 or more are marked. A declaration is not a wrongdoing — the register exists precisely so that these things are visible.

8. Miscellaneous

Elected parliamentary representative on Labour Party National Executive Committee,
Date interest arose: 1 September 2024
(Registered 4 December 2024)

On the register since 12 Feb 2026

Co-Chair for 'Pathways to Net Zero' and project bringing together energy businesses and parliamentarians to discuss energy related policy. Sponsoring meetings, lunches, dinners & receptions in House of Commons/Westminster. Supported by Palace Yard communications.
Date interest arose: 30 January 2025
(Registered 18 March 2025)

On the register since 12 Feb 2026

Executive Committee member of the British American Parliamentary Group. This is an unpaid role.
Date interest arose: 17 December 2024
(Registered 8 January 2025)

On the register since 23 Jan 2026

Trustee of Youth Charity, Shalom based in the East Marsh of Grimsby. This is an unpaid role.
Date interest arose: 1 February 2020
(Registered 4 December 2024)

On the register since 17 Dec 2025

Director of Grimsby Community Energy (cooperative model, principal aims to increase take up of community ownership of electricity generation, increase renewable sources of energy, deliver community benefit through lower bills and grants for sustainable or environmentally positive community projects). This is an unpaid role.
Date interest arose: 30 October 2022
(Registered 4 December 2024)

On the register since 17 Dec 2025

Co-Chair of the Commission for Carbon Competitiveness (a small group of MPs, former MPs and industry experts researching and producing reports on industrial competitiveness). Hanover Communications is appointed by the Commission to provide Secretariat duties, but Commissioners are not part of a formal contractual arrangement and do not appoint Hanover.
Date interest arose: 14 October 2024
(Registered 4 December 2024; updated 18 March 2025)

On the register since 25 Mar 2025

The same register on parliament.uk →

Debates

505 debates contributed to in total. The ten most recent:

Sources: Commons Votes API, Members API and the Register of Members' Financial Interests, all published by Parliament under the Open Parliament Licence. This member's register and debate record were last refreshed 3 Aug 2026. How every figure is worked out →

Machine-readable: JSON for this MP.

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