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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
27 Oct 2025 Victims and Courts Bill Report Stage: New Clause 4 No vote 152–337
21 Oct 2025 Sentencing Bill Committee: New Clause 30 No vote 77–390
21 Oct 2025 Sentencing Bill Committee: New Clause 9 No vote 104–317
21 Oct 2025 Sentencing Bill Committee: New Clause 6 No vote 167–313
21 Oct 2025 Sentencing Bill Committee: Amendment 24 No vote 182–307
21 Oct 2025 Sentencing Bill Committee: Clause 1, as amended, stand part No vote 389–102
21 Oct 2025 Sentencing Bill Committee: Amendment 46 No vote 105–381
20 Oct 2025 Diego Garcia Military Base and British Indian Ocean Territory Bill: Third Reading No vote 320–171
20 Oct 2025 Diego Garcia Military Base and British Indian Ocean Territory Bill Committee: New Clause 1 No vote 172–322
20 Oct 2025 Diego Garcia Military Base and British Indian Ocean Territory Bill Committee: Clause 2 stand part No vote 318–174
20 Oct 2025 Diego Garcia Military Base and British Indian Ocean Territory Bill Committee: Amendment 9 No vote 83–319
20 Oct 2025 Diego Garcia Military Base and British Indian Ocean Territory Bill Committee: Amendment 7 No vote 174–321
15 Oct 2025 Sustainable Aviation Fuel Remaining Stages: Amendment 9 No 160–324
15 Oct 2025 Sustainable Aviation Fuel Bill Remaining Stages: Amendment 8 No 151–319
15 Oct 2025 Sustainable Aviation Fuel Bill Remaining Stages: New Clause 5 No 78–316
14 Oct 2025 Mental Health Bill Report Stage: Amendment 41 No 164–333
14 Oct 2025 Mental Health Bill Report Stage: Amendment 40 No 163–339
14 Oct 2025 Mental Health Bill Report Stage New Clause 26 No 78–327
16 Sep 2025 Sentencing Bill: Second Reading No vote 340–77
16 Sep 2025 Sentencing Bill: Reasoned Amendment on Second Reading No vote 78–292
16 Sep 2025 Child poverty strategy (removal of two child limit): Ten Minute Rule Motion No vote 89–79
15 Sep 2025 Employment Rights Bill: Motion to disagree with Lords Amendment 121 No vote 316–161
15 Sep 2025 Employment Rights Bill: Motion to disagree with Lords Amendment 62 No vote 330–161
15 Sep 2025 Employment Rights Bill: Motion to disagree with Lords Amendment 61 No vote 330–161
15 Sep 2025 Employment Rights Bill: Motion to disagree with Lords Amendment 60 No vote 318–170

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:

Money declared to them

No donations to this member appear on the Electoral Commission's register for this Parliament. Only donations above the statutory thresholds have to be declared, and the match is made on name — search the register directly if you are checking a specific one.

Where the public money goes — contracts and donations →

Sources: Commons Votes API, Members API and the Register of Members' Financial Interests, all published by Parliament under the Open Parliament Licence; donations from the Electoral Commission's register. 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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