The 1935 Labour Party leadership election took place on 26 November 1935 when Herbert Morrison

Herbert Morrison

Herbert Stanley Morrison, Baron Morrison of Lambeth, CH, PC was a British Labour politician; he held a various number of senior positions in the Cabinet, including Home Secretary, Foreign Secretary and Deputy Prime Minister.-Early life:Morrison was the son of a police constable and was born in...

 and Arthur Greenwood

Arthur Greenwood

Arthur Greenwood CH was a prominent member of the Labour Party from the 1920s until the late 1940s. He rose to prominence within the party as secretary of its research department from 1920 and served as Parliamentary Secretary to the Ministry of Health in the short-lived Labour government of 1924...

 challenged Clement Attlee

Clement Attlee

Clement Richard Attlee, 1st Earl Attlee, KG, OM, CH, PC, FRS was a British Labour politician who served as the Prime Minister of the United Kingdom from 1945 to 1951, and as the Leader of the Labour Party from 1935 to 1955...

, the incumbent party leader of only one month and one day. Attlee, previously the party's Deputy Leader, had been appointed as an interim leader the previous month when George Lansbury

George Lansbury

George Lansbury was a British politician, socialist, Christian pacifist and newspaper editor. He was a Member of Parliament from 1910 to 1912 and from 1922 to 1940, and leader of the Labour Party from 1932 to 1935....

 resigned and the general election

United Kingdom general election, 1935

The United Kingdom general election held on 14 November 1935 resulted in a large, though reduced, majority for the National Government now led by Conservative Stanley Baldwin. The greatest number of MPs, as before, were Conservative, while the National Liberal vote held steady...

 was looming. With the Labour Party now having three times as many MPs, both Morrison and Greenwood stood in the annual election for leader, feeling that Attlee's appointment had only been intended as an interim measure. Morrison had not been an MP at the time of the October appointment, whilst Greenwood had declined to offer himself as a candidate then because he was strongly associated with trade union leaders such as Ernest Bevin

Ernest Bevin

Ernest Bevin was a British trade union leader and Labour politician. He served as general secretary of the powerful Transport and General Workers' Union from 1922 to 1945, as Minister of Labour in the war-time coalition government, and as Foreign Secretary in the post-war Labour Government.-Early...

, who were widely regarded as the reasons for forcing Lansbury to resign, a move that the vast majority of Labour MPs opposed.

The first round of the contest took place on 26 November 1935:

	Name	Votes
	Clement Attlee Clement Attlee Clement Richard Attlee, 1st Earl Attlee, KG, OM, CH, PC, FRS was a British Labour politician who served as the Prime Minister of the United Kingdom from 1945 to 1951, and as the Leader of the Labour Party from 1935 to 1955...	58
	Herbert Morrison Herbert Morrison Herbert Stanley Morrison, Baron Morrison of Lambeth, CH, PC was a British Labour politician; he held a various number of senior positions in the Cabinet, including Home Secretary, Foreign Secretary and Deputy Prime Minister.-Early life:Morrison was the son of a police constable and was born in...	44
	Arthur Greenwood Arthur Greenwood Arthur Greenwood CH was a prominent member of the Labour Party from the 1920s until the late 1940s. He rose to prominence within the party as secretary of its research department from 1920 and served as Parliamentary Secretary to the Ministry of Health in the short-lived Labour government of 1924...	33

As the lowest-placed candidate, Greenwood was eliminated from the race.

The second contest took place on 3 December:

	Name	Votes
	Clement Attlee Clement Attlee Clement Richard Attlee, 1st Earl Attlee, KG, OM, CH, PC, FRS was a British Labour politician who served as the Prime Minister of the United Kingdom from 1945 to 1951, and as the Leader of the Labour Party from 1935 to 1955...	88
	Herbert Morrison Herbert Morrison Herbert Stanley Morrison, Baron Morrison of Lambeth, CH, PC was a British Labour politician; he held a various number of senior positions in the Cabinet, including Home Secretary, Foreign Secretary and Deputy Prime Minister.-Early life:Morrison was the son of a police constable and was born in...	48

With a clear majority, Attlee retained the party leadership.