Category:Members of the Parliament of the United Kingdom by political party

• Members of the Parliament of the United Kingdom by country by political party‎ (5 C)

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• Lists of United Kingdom MPs by party‎ (4 C, 22 P)

A

• Alba Party MPs‎ (2 P)
• All-for-Ireland League MPs‎ (13 P)
• Alliance Party of Northern Ireland MPs‎ (4 P)
• Anti H-Block MPs‎ (2 P)

C

• Change UK MPs‎ (11 P)
• Common Wealth Party MPs‎ (6 P)
• Communist Party of Great Britain MPs‎ (5 P)
• Conservative Party (UK) MPs‎ (10 C, 1 P)
• Crofters Party MPs‎ (5 P)

D

• Democratic Unionist Party MPs‎ (19 P)

G

• Green Party of England and Wales MPs‎ (5 P)

H

• Healyite Nationalist MPs‎ (9 P)
• Home Rule League MPs‎ (67 P)

I

• Independent Labour Party MPs‎ (36 P)
• Independent members of the House of Commons of the United Kingdom‎ (3 C, 188 P)
• Independent Nationalist MPs‎ (10 P)
• Irish Parliamentary Party MPs‎ (2 C, 222 P)
• Irish Repeal Association MPs‎ (81 P)
• Irish Unionist Party MPs‎ (71 P)

L

• Liberal-Labour (UK) MPs‎ (35 P, 1 F)
• Labour Party (Ireland) MPs‎ (1 P)
• Labour Party (UK) MPs‎ (8 C, 1 P)
• Liberal Democrats (UK) MPs‎ (4 C, 1 P)
• Liberal Party (UK) MPs‎ (5 C, 1 P)
• Liberal Unionist Party MPs‎ (4 C, 1 P)

N

• National Democratic and Labour Party MPs‎ (11 P)

P

• Plaid Cymru MPs‎ (14 P)

R

• Reclaim Party MPs‎ (1 P)
• Reform UK MPs‎ (5 P)
• Respect Party MPs‎ (1 P)

S

• Scottish National Party MPs‎ (1 C, 90 P)
• Sinn Féin MPs‎ (2 C, 1 P)
• Social Democratic and Labour Party MPs (UK)‎ (11 P)
• Social Democratic Party (UK, 1988–1990) MPs‎ (3 P)
• Social Democratic Party (UK) MPs‎ (3 C, 1 P)

T

• Tory members of the Parliament of the United Kingdom‎ (25 P)
• Tory MPs (pre-1834)‎ (6 C, 468 P)
• Traditional Unionist Voice MPs‎ (1 P)

U

• UK Independence Party MPs‎ (3 P)
• Ulster Unionist Party MPs‎ (95 P)
• Unionist Party (Scotland) MPs‎ (1 C, 177 P)

W

• Whig (British political party) MPs‎ (7 C, 78 P)
• Workers Party of Britain MPs‎ (1 P)