| Election Name: | 1929 United Kingdom general election |
| Country: | United Kingdom of Great Britain and Northern Ireland |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1924 United Kingdom general election |
| Previous Year: | 1924 |
| Outgoing Members: | List of MPs elected in the 1924 United Kingdom general election |
| Next Election: | 1931 United Kingdom general election |
| Next Year: | 1931 |
| Elected Members: | List of MPs elected in the 1929 United Kingdom general election |
| Seats For Election: | All 615 seats in the House of Commons |
| Majority Seats: | 308 |
| Elected Mps: | List of MPs elected in the 1929 United Kingdom general election |
| Election Date: | 30 May 1929 |
| Turnout: | 76.3%, 0.7 pp |
| Leader1: | Ramsay MacDonald |
| Leader Since1: | 21 November 1922 |
| Party1: | Labour Party (UK) |
| Leaders Seat1: | Seaham |
| Last Election1: | 151 seats, 33.3% |
| Seats1: | 287 |
| Seat Change1: | 136 |
| Popular Vote1: | 8,048,968 |
| Percentage1: | 37.1% |
| Swing1: | 3.8 pp |
| Leader2: | Stanley Baldwin |
| Leader Since2: | 23 May 1923 |
| Party2: | Conservative Party (UK) |
| Leaders Seat2: | Bewdley |
| Last Election2: | 412 seats, 46.8% |
| Seats2: | 260 |
| Seat Change2: | 152 |
| Popular Vote2: | 8,252,527 |
| Percentage2: | 38.1% |
| Swing2: | 8.7 pp |
| Leader3: | David Lloyd George |
| Leader Since3: | 14 October 1926 |
| Party3: | Liberal Party (UK) |
| Leaders Seat3: | Caernarvon Boroughs |
| Last Election3: | 40 seats, 17.8% |
| Seats3: | 59 |
| Seat Change3: | 19 |
| Popular Vote3: | 5,104,638 |
| Percentage3: | 23.6% |
| Swing3: | 5.8 pp |
| Map Size: | 380px |
| Prime Minister | |
| Posttitle: | Prime Minister after election |
| Before Election: | Stanley Baldwin |
| Before Party: | Conservative Party (UK) |
| After Election: | Ramsay MacDonald |
| After Party: | Labour Party (UK) |
| Map2 Image: | File:1929 UK GE composition diagram.svg |
| Map2 Caption: | Diagram displaying the composition of the House of Commons following the election |
The 1929 United Kingdom general election was held on Thursday, 30 May 1929, and resulted in a hung parliament. Ramsay MacDonald's Labour Party won the most seats in the House of Commons for the first time despite receiving fewer votes than the Conservative Party, led by Prime Minister Stanley Baldwin. The Liberal Party, led again by former Prime Minister David Lloyd George, regained some of the ground lost in the 1924 general election and held the balance of power. Parliament was dissolved on 10 May.[1]
The election was often referred to as the "Flapper Election", because it was the first in which women aged 21–29 had the right to vote (owing to the Representation of the People Act 1928). Women over 30, with some property qualifications, had been able to vote since the 1918 general election, but the 1929 vote was the first general election with universal suffrage for adults over 21, which was then the age of majority.
The election was fought against a background of rising unemployment, with the memory of the 1926 general strike still fresh in voters' minds. By 1929, the Cabinet was being described by many as "old and exhausted".
The Liberals campaigned on a comprehensive programme of public works under the title "We Can Conquer Unemployment". There was anticipation of a potential revival of the Liberal Party after the reunification of Independent Liberals and National Liberals now under Lloyd George's leadership since 1926 and following some victories in a series of recent by-elections after 1926.[2] The incumbent Conservatives campaigned on the theme of "Safety First", with Labour campaigning on the theme of "Labour & the Nation".
This was the first general election to be contested by the newly formed Welsh nationalist party Plaid Cymru.
It stood as the last time when a third party polled more than one-fifth of the popular vote until 1983. The Liberals performed more successfully than at the previous general election in 1924, but could not regain its pre-World War I status as a party of government.
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1 Previous MP had defected to the Conservatives by the 1929 election
2 Previous MP had defected to the Liberals by the 1929 election