MP for Great Grimsby and Cleethorpes
“A party‑loyal Labour backbencher who has occasionally rebelled on European Union–related votes.”
Melanie Onn is a Labour (Co‑op) MP for Great Grimsby and Cleethorpes, first elected in 2024. She sits on the Energy Security and Net Zero Committee (from March 2025) and has served on a range of parliamentary committees, including Standards and Privileges, with past shadow responsibilities in housing.
Her voting record shows 100% party loyalty (party average 99%) with an attendance rate of 37% (above the party average of 33%). She sits around 63/100 on the political spectrum, indicating a centre‑right positioning in this metric. She has four rebel votes, including notable 2019 EU‑related votes where she aligned with government positions that the party opposed, and two votes against a proposed confirmatory public vote.
Declared financial interests include six miscellaneous entries.
Generated 21 February 2026
How this MP participates in parliamentary votes. These numbers describe activity, not effectiveness.
How often this MP votes
Labour (Co-op) average: 33%
The percentage of parliamentary votes (divisions) this MP participated in. MPs may miss votes for legitimate reasons including ministerial duties, constituency work, or illness.
How often this MP votes with their party
Labour (Co-op) average: 99%
Estimated from voting record, not self-declared. This is a simplified model — real politics is more complex than a single axis.
15 positions
Energy Security and Net Zero Committee
Since Mar 2025
Football Governance Bill [HL]
May 2025 - Jun 2025
Institute for Apprenticeships and Technical Education (Transfer of Functions etc) Bill [HL]
Mar 2025 - Mar 2025
Crown Estate Bill [HL]
Jan 2025 - Feb 2025
Committee on Standards
Oct 2024 - Mar 2025
Committee of Privileges
Oct 2024 - Mar 2025
Shadow Minister (Housing, Communities and Local Government) (Housing)
Jan 2018 - Mar 2019
Figures include only interests with declared monetary values from the Register of Members' Financial Interests. Some categories (e.g. hospitality, overseas visits) may not have monetary values recorded, so the total may not reflect all declared interests.
Opposition Day Motion: Defence
NOOpposition Day Motion: Oil and Gas
NONational Insurance Contributions (Employer Pensions Contributions) Bill: motion to disagree with Lords Amendment 6
AYENational Insurance Contributions (Employer Pensions Contributions) Bill
National Insurance Contributions (Employer Pensions Contributions) Bill: motion to disagree with Lords Amendment 5
AYENational Insurance Contributions (Employer Pensions Contributions) Bill
National Insurance Contributions (Employer Pensions Contributions) Bill: motion to disagree with Lords Amendment 3
AYENational Insurance Contributions (Employer Pensions Contributions) Bill
National Insurance Contributions (Employer Pensions Contributions) Bill: motion to disagree with Lords Amendment 2
AYENational Insurance Contributions (Employer Pensions Contributions) Bill
National Insurance Contributions (Employer Pensions Contributions) Bill: motion to disagree with Lords Amendment 1
AYENational Insurance Contributions (Employer Pensions Contributions) Bill
Opposition day motion: student loans
NOOpposition day motion: fuel duty
NODraft Higher Education (Fee Limits and Fee Limit Condition) (England) (Amendment) Regulations 2026
AYEDraft Employment Rights Act 2025 (Investigatory Powers) (Consequential Amendments) Regulations 2026
AYEFinance (No. 2) Bill: Third Reading
AYEFinance (No. 2) Bill
Finance (No. 2) Bill Report Stage: Amendment 6
NOFinance (No. 2) Bill
Finance (No. 2) Bill Report Stage: Amendment 5
NOFinance (No. 2) Bill
Finance (No. 2) Bill Report Stage: New Clause 11
NOFinance (No. 2) Bill
The percentage of votes where this MP voted the same way as the majority of their party. High loyalty is typical; most MPs vote with their party on most issues.
Rebel votes
Times this MP voted differently from the majority of their party. This can reflect independent judgement, but context matters — some rebel votes are on procedural matters, others on major policy.
