Deirdre Costigan

Deirdre Costigan

Labour (Co-op) Sitting member
Constituency
Ealing Southall
Region
England
Member since
4 July 2024

View this member on parliament.uk ↗

This parliament

Voting participation
90%
Debates contributed to
144
Registered interests
14
Declared value
£9,381

Record last updated 3 Oct 2026

Deirdre Costigan was elected to represent Ealing Southall in July 2024, making her a relatively new MP in the current parliament. She has cast 482 votes from 534 eligible divisions, achieving a participation rate of 90% and standing in the top 5% of MPs by voting participation. She has made 218 contributions across 144 debates, with her top debate topics being Other/Procedural, Economy & Finance, and Trade & Industry, while her voting has focused on Parliamentary Procedure, Employment & Workers Rights, and Justice & Law.

Summary generated on 09/10/2026 (View details)

VOTING PARTICIPATION

482 / 534

90.26%

Ranked #25 of 654 MPs (96th percentile)

DEBATE CONTRIBUTIONS

144 / 11848

218 total contributions

Ranked #305 of 654 MPs (54th percentile)

REGISTERED INTERESTS

14

£9,380.67

£

Ranked #467 of 654 MPs (29th percentile)

PARLIAMENTARY RECORD

Deirdre Costigan is the Labour MP for Ealing Southall, and has been an MP continually since 4 July 2024. She currently holds the Government post of Government Whip, Lord Commissioner of HM Treasury.

Constituencies

  • Ealing Southall Jul 2024 – present

Posts held

  • Government Whip, Lord Commissioner of HM Treasury May 2026 – Jul 2026
  • Assistant Whip Sep 2025 – May 2026