This is a listing of sessions of the Parliament of the United Kingdom, tabulated with the elections to the House of Commons for each session, and the list of members of the House.

The sessions are numbered from the formation of the United Kingdom of Great Britain and Ireland. For previous Westminster parliaments, see List of Parliaments of Great Britain.

NumberStart dateElectionMembersPrime Minister(s)
1st1802electionMPs
2nd1806electionMPs
3rd1807electionMPs
4th1818electionMPs
5th1820electionMPs
6th1826electionMPs
7th1830electionMPs
8th1831electionMPs
9th1832electionMPs
10th1835electionMPs
11th1837electionMPs
12th1841electionMPs
13th1847electionMPs
14th1852electionMPs
15th1857electionMPs
16th1859electionMPs
17th1865electionMPs
18th1868electionMPs
19th1874electionMPs
20th1880electionMPs
21st1885electionMPs
22nd1886electionMPs
23rd1892electionMPs
24th1895electionMPs
25th1900electionMPs
26th1906electionMPs
29th1910 (January)electionMPs
30th1910 (December)electionMPs
31st1918electionMPs
32nd1922electionMPs
33rd1923electionMPs
34th1924electionMPs
35th1929electionMPs
36th1931electionMPs
37th1935electionMPs
38th1945electionMPsClement Atlee
39th1950electionMPsClement Atlee
40th1951electionMPsHarold Macmillan
41st1955electionMPsHarold Macmillan
42nd1959electionMPsHarold Macmillan, Alec Douglas-Home
43rd1964electionMPsHarold Wilson
44th1966electionMPsHarold Wilson
45th1970electionMPsEdward Heath
46th1974 (February)electionMPsHarold Wilson
47th1974 (October)electionMPsHarold Wilson, James Callaghan
48th1979electionMPsMargaret Thatcher
49th1983electionMPsMargaret Thatcher
50th1987electionMPsMargaret Thatcher, John Major
51st1992electionMPsJohn Major
52nd1997electionMPsTony Blair
53rd2001electionMPsTony Blair