Deirdre Costigan
- Constituency
- Ealing Southall
- Region
- England
- Member since
- 4 July 2024
This parliament
- Voting participation
- 90%
- Debates contributed to
- 153
- Registered interests
- 14
- Declared value
- £9,381
Record last updated 14 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
487 / 539
90.35%
Ranked #25 of 655 MPs (96th percentile)
DEBATE CONTRIBUTIONS
153 / 11985
227 total contributions
Ranked #275 of 655 MPs (58th percentile)
REGISTERED INTERESTS
14
£9,380.67
Ranked #468 of 655 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