MP for Great Grimsby and Cleethorpes
“A backbench Labour Co-op MP who has occasionally rebelled on Brexit votes, while maintaining a focus on housing, public services and net-zero energy issues.”
Melanie Onn is a Labour Co-operative MP for Great Grimsby and Cleethorpes, first elected on 4 July 2024. She currently sits on the Energy Security and Net Zero Committee (since March 2025) and has a background in housing policy, with previous roles including Shadow Minister for Housing and service on housing and local government committees.
Her voting pattern is broadly loyal to the party (100% party loyalty) with a voting attendance of 39% (above the party average of 34%). She has 4 noted rebel votes, including Brexit-related votes in 2019, and generally votes in favour of bus services regulation, mental health services and protest rights, while voting mixingly on workers' rights protections, trade union powers, immigration controls and prison sentencing.
Declared financial interests include six entries described as miscellaneous; details are not provided in the data.
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: 34%
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.
Steel Industry (Nationalisation) Bill: Reasoned Amendment to Second Reading
NOSteel Industry (Nationalisation) Bill
King's Speech Motion for an Address
AYEKing's Speech Motion for an Address: amendment (p)
NOKing's Speech Motion for an Address: amendment (l)
NOKing's Speech Motion for an Address: amendment (o)
NOKing's Speech Motion for an Address: amendment (i)
NODraft Immigration and Asylum (Provision of Accommodation to Failed Asylum-Seekers) (Amendment) Regulations 2026
AYEDraft Asylum Seekers (Reception Conditions) (Amendment) Regulations 2026
AYEPension Schemes Bill: Government Motion relating to Lords Reason 88X
AYECollective Defined Contribution Pension Schemes Bill
Privilege
NOChildren's School and Wellbeing Bill: Motion relating to Lords Amendments 38V to 38X
AYENorthern Ireland Troubles Bill: Carry-over (Motion)
AYENorthern Ireland Troubles Bill
Pension Schemes Bill: Motion relating to Lords Reason 88Q
AYECollective Defined Contribution Pension Schemes Bill
English Devolution and Community Empowerment Bill: Motion relating to Lords Amendments 85, 86, 97 to 116, 120, 121 and 123 etc
AYEEnglish Devolution and Community Empowerment Bill
English Devolution and Community Empowerment Bill: Motion relating to Lords Amendments 94B and 94C
AYEEnglish Devolution and Community Empowerment 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.
