Who is the MP for Hayes and Harlington?

Rt Hon John McDonnell MP · Labour

John McDonnell (Labour) is the Member of Parliament for Hayes and Harlington, and has been in the House of Commons since 1 May 1997.

2024 General Election in Hayes and Harlington

Result: Lab Hold. Turnout was 51.5% (38,315 votes from 74,405 electors). The majority was 12,031, or 31.4% of votes cast.

John McDonnell on parliament.uk

Everything below opens Parliament's own published record. Nothing here is scored or ranked.

• How they have voted
• What they have said in the Commons (Hansard)
• Written questions they have asked
• Register of Members' Financial Interests
• Contact details
• Hayes and Harlington constituency page

See the whole record in the app

Who Is My MP? is a free iPhone app. Enter your postcode and it shows your MP's votes, speeches, questions and declared interests on one screen, with every item linked to Parliament's own record.

Is Hayes and Harlington your constituency?

Constituencies follow addresses, not town names, so neighbouring streets can sit in different seats. Use the app, or Parliament's Find your MP, to check by postcode.

Data from UK Parliament's Members API, under the Open Parliament Licence v3.0. Page built 24 September 2026.