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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
18 Mar 2026 Draft Employment Rights Act 2025 (Investigatory Powers) (Consequential Amendments) Regulations 2026 deferred division Aye 368–107
11 Mar 2026 Finance (No. 2) Bill: Third Reading Aye 292–161
11 Mar 2026 Finance (No. 2) Bill Report Stage: Amendment 6 No 175–292
11 Mar 2026 Finance (No. 2) Bill Report Stage: Amendment 5 No 172–283
11 Mar 2026 Finance (No. 2) Bill Report Stage: New Clause 11 No 174–292
10 Mar 2026 Courts and Tribunals Bill: Second Reading Aye 304–203
10 Mar 2026 Courts and Tribunals Bill: Reasoned Amendment to Second Reading No 203–311
9 Mar 2026 Children's Wellbeing and Schools Bill: motion to disagree with Lords Amendment 106 Aye 304–177
9 Mar 2026 Children's Wellbeing and Schools Bill: motion to disagree with Lords Amendment 102 Aye 315–163
9 Mar 2026 Children's Wellbeing and Schools Bill: motion to disagree with Lords Amendment 44 Aye 315–109
9 Mar 2026 Children's Wellbeing and Schools Bill: motion to disagree with Lords Amendment 41 Aye 316–171
9 Mar 2026 Children's Wellbeing and Schools Bill: motion to disagree with Lords Amendment 38 Aye 307–173
9 Mar 2026 Children's Wellbeing and Schools Bill: motion to disagree with Lords Amendment 37 Aye 321–106
9 Mar 2026 Children's Wellbeing and Schools Bill: motion to disagree with Lords Amendment 17 Aye 306–182
9 Mar 2026 Children's Wellbeing and Schools Bill: motion to disagree with Lords Amendment 16 Aye 309–181
2 Mar 2026 Representation of the People Bill: Reasoned Amendment to Second Reading No 105–410
24 Feb 2026 Opposition Day: Protections for children from online harms No 69–279
23 Feb 2026 Universal Credit (Removal of Two Child Limit) Bill: Third Reading Aye 361–84
23 Feb 2026 Universal Credit (Removal of Two Child Limit) Bill Committee: New Clause 3 No 73–256
23 Feb 2026 Industry and Exports (Financial Assistance) Bill Committee: New Clause 3 No 77–280
23 Feb 2026 Industry and Exports (Financial Assistance) Bill Committee: New Clause 2 No 156–273
23 Feb 2026 Industry and Exports (Financial Assistance) Bill Committee: Amendment 1 No 161–272
11 Feb 2026 Referendums Relating to Council Tax Increases (Principles) (England) Report 2026-27 Aye 279–90
11 Feb 2026 Local Government Finance Report (England) 2026-27 Aye 277–143
11 Feb 2026 Draft Greenhouse Gas Emissions Trading Scheme (Amendment) (Extension to Maritime Activities) Order 2026 deferred division No vote 362–107

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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