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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
4 Feb 2026 Draft Greenhouse Gas Emissions Trading Scheme (Amendment) Order 2026 deferred division No vote 392–116
3 Feb 2026 Universal Credit (Removal of Two Child Limit) Bill: Second Reading Aye 458–104
28 Jan 2026 Opposition Day: Youth unemployment No 91–287
28 Jan 2026 Opposition Day: British Indian Ocean Territory No 103–284
28 Jan 2026 Draft Medical Devices (Fees Amendment) Regulations 2026 deferred division Aye 294–108
27 Jan 2026 Medical Training (Prioritisation) Bill: Amendment 1 No 88–310
27 Jan 2026 Medical Training (Prioritisation) Bill: Amendment 2 No 61–311
27 Jan 2026 Medical Training (Prioritisation) Bill: Amendment 9 No 91–378
21 Jan 2026 Northern Ireland Troubles (Legacy and Reconciliation) Act 2023 (Remedial) Order 2025 Aye 373–106
21 Jan 2026 National Insurance Contributions (Employer Pensions Contributions) Bill: Third Reading Aye 316–194
21 Jan 2026 National Insurance Contributions (Employer Pensions Contributions) Bill Committee: New Clause 5 No 195–317
21 Jan 2026 National Insurance Contributions (Employer Pensions Contributions) Bill Committee: Amendment 5 No 191–326
20 Jan 2026 Diego Garcia Military Base and British Indian Ocean Territory Bill: motion to disagree with Lords Amendment 6 Aye 347–184
20 Jan 2026 Diego Garcia Military Base and British Indian Ocean Territory Bill: motion to disagree with Lords Amendment 5 Aye 347–185
20 Jan 2026 Diego Garcia Military Base and British Indian Ocean Territory Bill: motion to disagree with Lords Amendment 1 Aye 344–182
20 Jan 2026 Sentencing Bill: motion to disagree with Lords Amendment 7 Aye 319–127
14 Jan 2026 Draft Public Order Act 2023 (Interference With Use or Operation of Key National Infrastructure) Regulations 2025 deferred division Aye 301–110
13 Jan 2026 Finance (No. 2) Bill Committee: New Clause 26 No vote 172–334
13 Jan 2026 Finance (No. 2) Bill Committee: New Clause 9 No vote 181–335
13 Jan 2026 Finance (No. 2) Bill Committee: Clause 86 stand part No vote 344–173
13 Jan 2026 Finance (No. 2) Bill Committee: New Clause 25 No 187–351
13 Jan 2026 Finance (No. 2) Bill Committee: New Clause 24 No 184–331
13 Jan 2026 Finance (No. 2) Bill Committee: Clause 63 Stand part Aye 348–167
12 Jan 2026 Finance (No. 2) Bill Committee: New Clause 7 No 188–341
12 Jan 2026 Finance (No. 2) Bill Committee: Amendment 3 No 185–344

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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