At a glanceDame Siobhain McDonagh is a Labour MP for Mitcham and Morden, and has represented the seat for 29 years, 2 months. They have cast 341 votes in Commons divisions (59% attendance) and tabled 580 written questions.
Attendance is votes cast as a share of the 575 Commons divisions since the 2024 election; Dame Siobhain McDonagh did not vote in 234. A rebellion is a vote against the way most of their own party voted; free votes, where no party line applies, are left out.
Party-loyalty figures are our own analysis of the official voting records (recorded votes only; they do not describe the formal whip). How we work this out.
Biography
Current roles
- Rare Cancers Bill Committee since 26 Jun 2025
- Treasury Committee Committee since 21 Oct 2024
- Panel of Chairs Committee since 30 Jul 2024
- Mitcham and Morden Representation · Elected 1 time since 4 Jul 2024
- Labour Party since 1 May 1997
Voting record
Voting alignment
Votes most like
-
Sojan Joseph
Labour
100.0% · 329 of 329 shared votes
-
Laurence Turner
Labour
100.0% · 318 of 318 shared votes
-
Lola McEvoy
Labour
100.0% · 318 of 318 shared votes
-
Justin Madders
Labour
100.0% · 318 of 318 shared votes
-
Liz Twist
Labour
100.0% · 315 of 315 shared votes
Votes least like
-
George Freeman
Conservative
1.1% · 2 of 179 shared votes
-
Mark Garnier
Conservative
1.6% · 4 of 246 shared votes
-
Sir Roger Gale
Conservative
1.6% · 3 of 190 shared votes
-
Sir Oliver Dowden
Conservative
1.8% · 4 of 228 shared votes
-
James Cartlidge
Conservative
1.9% · 5 of 261 shared votes
Alignment figures are our own analysis of the official voting records (recorded votes only; they do not describe the formal whip). How we work this out.
Written questions
Brain: Tumours
To ask the Secretary of State for Health and Social Care, what assessment he has made of the adequacy of the performance of the National Institute for Health and Care Research Brain Tumour Research Consortium on improving the treatment of glioblastoma bra
Answer · 14 Apr 2026
The Department invests over £1.7 billion per year in research through the National Institute for Health and Care Research (NIHR).We are committed to furthering our investment in brain cancer research and have already taken steps to stimulate scientific pr...
Bangladesh: Freedom of Religion
To ask the Secretary of State for Foreign, Commonwealth and Development Affairs, what discussions she has had with her counterparts in Bangladesh on the (a) anti-Ahmadi protests planned in Bangladesh for 15 November and (b) upholding freedom of religion f
Answer · 10 Nov 2025
The UK has a long-standing commitment to the promotion and protection of human rights, including Freedom of Religion or Belief (FoRB). We continue to support those goals through regular dialogue with the Interim Government of Bangladesh, to ensure that th...
Local Government Services: Exercise
To ask the Secretary of State for Housing, Communities and Local Government, whether he has had recent discussions with Cabinet colleagues on taking steps to help support (a) Merton Council’s London Borough of Sport programme and (b) other local authority
Answer · 10 Nov 2025
DCMS, as the lead department for the Government's arm's-length body Sport England, is investing up to £250 million of National Lottery and Exchequer funding into more than 90 locations across England. This investment is being delivered in partnership with...
Exercise: Public Health
To ask the Secretary of State for Health and Social Care, if he will make an assessment of the potential impact of local authority-led initiatives to increase physical activity on public health outcomes.
Answer · 5 Nov 2025
The Department recognises the vital role of local authorities in promoting physical activity and continues to support them with this through the Public Health Grant, the Public Health Outcomes Framework, and by working with other departments on the develo...
Kurdistan: Elections
To ask the Secretary of State for Foreign, Commonwealth and Development Affairs, what assessment he has made of the implications for his policies of the dissemination of AI-generated misinformation in the lead-up to the regional elections in Kurdistan; an
Answer · 15 Oct 2024
The upcoming elections in the Kurdistan Region of Iraq (KRI) are essential for democratic legitimacy and for the people of the KRI to express their voice.The British Consulate General in Erbil has supported roundtables and workshops with the Kurdistan Reg...
Employee Ownership
To ask the Chancellor of the Exchequer, whether she plans to respond to the call for evidence entitled Non-Discretionary Tax-Advantaged Share Schemes: Call for Evidence, which closed on 25 August 2023.
Answer · 11 Oct 2024
The Non-Discretionary Tax-Advantaged Share Schemes Call for Evidence ran under the previous government. The government is considering the responses to the call for evidence. The government is grateful to those who took the time to respond.
Immigration: Windrush Generation
To ask the Secretary of State for the Home Department, what the cost was to the public purse of (a) legal fees and (b) related costs incurred for the rejection of freedom of information requests between 30 March 2020 and 9 September 2024 seeking the publi
Answer · 18 Sep 2024
We do not know the total legal fees incurred as we have not yet been billed for the complete period between 30 March 2020 to 9 September 2024, but we expect the final cost to be in the region of £20,000-£22,500. There was no awarding of costs in the First...
Civil Servants: Recruitment
To ask the Minister for the Cabinet Office, if he will publish a list of exceptions that were used in the recruitment of civil servants (a) at and (b) above Payband 2 level before Civil Service Commission approval, between 2010 and 2018.
Answer · 10 Sep 2024
Data relating to exceptions for Civil Servants between 2010 and 2018 is no longer held/available in accordance with retention schedules.
Early day motions
| 18 Dec 2023 | Integrated Care Board funding for children’s hospices in England | 6 sig. |
| 19 Jun 2023 | Children’s Hospice Week 2023 | 18 sig. |
| 5 Jun 2023 | Honouring Laura Nuttall | 30 sig. |
| 20 Feb 2023 | Ukrainian refugees and driving in the UK | 11 sig. |
| 31 Jan 2023 | Preconception care strategy | 12 sig. |
| 8 Dec 2022 | Energy costs for families of seriously ill children | 32 sig. |
Speeches in the chamber
8 Jul 2026 NHS Corridor Care
A number of constituents who work as nurses in the A&E department at St Helier hospital asked me to come to see for myself what they were dealing with. They asked me to come late on a Monday morning, rather than a Saturday or Sunday…
2 Jul 2026 Business of the House
St Helier hospital has the fourth best maternity unit in the country, the only exclusively NHS-run assisted conception unit in south-west London, and a specialist gynaecology ward where nurses are highly trained in counselling. Yet all tha…
2 Jul 2026 Heart Disease and Stroke: Premature Deaths
I call Paul Foster to wind up, very quickly.
2 Jul 2026 Heart Disease and Stroke: Premature Deaths
I call Mark Francois.
2 Jul 2026 Heart Disease and Stroke: Premature Deaths
I remind Members to bob if they wish to be called in the debate.
2 Jul 2026 Heart Disease and Stroke: Premature Deaths
Gentlemen may take off their jackets off if they wish.
15 Jun 2026 Brain Cancer
I thank the Petitions Committee and my friends from Brain Cancer Justice, who I affectionately think of as the provisional wing of the all-party parliamentary group on brain tumours. In July last year, we launched Margaret’s trial at Un…
1 Jun 2026 Child Sexual Offender Data
Order. Ms Spencer, I appreciate that you are very new to this House, and it is great that you are at this debate. I note that you will be making a speech later, and there will be time, but what you are doing at the moment is making an inte…
1 Jun 2026 Child Sexual Offender Data
I remind hon. Members that they need to bob if they wish to speak. I want to be sure that I have a good idea of who wants to contribute, because we want to make sure that everybody has as long as they need to make their contribution. We wi…
1 Jun 2026 Child Sexual Offender Data
Order. Will the Member please sit down? Please do not make me have to intervene a third time.
1 Jun 2026 Child Sexual Offender Data
Order. I point out to Members that this is an incredibly important debate, which is why so many of you are here today. I would ask you to be brief in your interventions, out of respect for all other Members who have something to say.
18 May 2026 Backing Business to Create Economic Growth
The King’s Speech set out this Government’s commitment to remove the barriers holding back Britain and to break through the failed status quo. Nowhere is that more urgently needed than in life sciences and medical innovation. Britain canno…
16 Apr 2026 NHS Federated Data Platform
Order. May I just say that the hon. Member had very generous time allocated to him during this debate? If the Minister does not want to take an intervention, he does not need to.
16 Apr 2026 NHS Federated Data Platform
I call the Government spokesperson—[Interruption.] I call the Opposition spokesperson.
16 Apr 2026 NHS Federated Data Platform
I call the Liberal Democrat spokesperson.
16 Apr 2026 NHS Federated Data Platform
Order. Mr Wrigley has asked me if he can sum up at the end of the debate—his chances were in his hands. Because the debate is so popular, I will now impose a two-and-half-minute time limit on contributions. I call Dawn Butler.
14 Apr 2026 Topical Questions
At 2 pm today, many Members of this House will be attending the funeral of our dear friend Phil Woolas, the Member for Oldham East and Saddleworth from 1997 to 2010, who passed away from a glioblastoma brain tumour on 14 March. I am sure t…
19 Mar 2026 Northern Ireland: Legacy of the Past
I call Jim Shannon—a brief Jim Shannon.
19 Mar 2026 Northern Ireland: Legacy of the Past
I apologise to the two Members who are standing; we have 12 minutes left for Back-Bench speeches, so that is six minutes each.
19 Mar 2026 Northern Ireland: Legacy of the Past
I remind Members that they should bob if they wish to be called in the debate. I also ask you to be mindful about issues of sub judice; we have been given some flexibility by the Speaker, but I urge you to err on the side of caution when r…
Source: contributions on parliament.uk.
Full parliamentary career
Government posts
- Assistant Whip (HM Treasury) · HM Treasury 2 Jul 2007 – 12 Sep 2008
Committee memberships
- Treasury Sub-Committee on Financial Services Regulations 20 Jun 2022 – 30 May 2024
- Treasury Committee 11 May 2020 – 30 May 2024
- Panel of Chairs 15 Jan 2020 – 30 May 2024
- Finance Bill 10 Jan 2024 – 10 Jan 2024
- Renters (Reform) Bill 8 Nov 2023 – 28 Nov 2023
- Social Housing (Regulation) Bill [HL] 23 Nov 2022 – 29 Nov 2022
- Financial Services and Markets Bill 12 Oct 2022 – 3 Nov 2022
- Panel of Chairs 11 Sep 2017 – 6 Nov 2019
- Women and Equalities Committee 26 Oct 2015 – 13 Jun 2016
- Education Committee 10 Sep 2012 – 30 Mar 2015
- Health and Social Care Committee 27 Nov 2000 – 12 Jul 2005
- Social Security 14 Jul 1997 – 28 Nov 1997
Previous seats
- Mitcham and Morden · Elected 4 times 6 May 2010 – 30 May 2024
- Mitcham and Morden · Elected 3 times 1 May 1997 – 6 May 2010
Elections contested
- Mitcham and Morden 9 Apr 1992
- Mitcham and Morden 11 Jun 1987
Expenses
Contact & offices
020 7219 4678
Parliamentary office
House of Commons, London, SW1A 0AA
Constituency office
1 Crown Road, Morden, SM4 5DD
Frequently asked questions
Common questions about Dame Siobhain McDonagh, answered from official Parliament data.
Who is Dame Siobhain McDonagh?
Dame Siobhain McDonagh is a Member of Parliament representing Mitcham and Morden in the House of Commons. See Dame Siobhain McDonagh's official Parliament profile.
Which party does Dame Siobhain McDonagh represent?
Dame Siobhain McDonagh sits as Labour. See Dame Siobhain McDonagh's official Parliament profile.
Which constituency does Dame Siobhain McDonagh represent?
Dame Siobhain McDonagh is the Member of Parliament for Mitcham and Morden. See Dame Siobhain McDonagh's official Parliament profile.
How long has Dame Siobhain McDonagh been an MP?
Dame Siobhain McDonagh has served in the House of Commons for 29 years, 2 months. See Dame Siobhain McDonagh's official Parliament profile.
What registered interests are listed for Dame Siobhain McDonagh?
Dame Siobhain McDonagh has no entries in the Register of Members' Financial Interests. See Dame Siobhain McDonagh's official Parliament profile.
Source: this MP's official Parliament profile. Last updated 26 Jul 2026.