The 1915 South African general election was held on 20 October 1915 for the 130 seats in the House of Assembly

House of Assembly of South Africa

The House of Assembly was the lower house of the Parliament of South Africa from 1910 to 1984, and latterly the white representative house of the Tricameral Parliament from 1984 to 1994, when it was replaced by the current National Assembly...

 of the Union

Union of South Africa

The Union of South Africa is the historic predecessor to the present-day Republic of South Africa. It came into being on 31 May 1910 with the unification of the previously separate colonies of the Cape, Natal, Transvaal and the Orange Free State...

 of South Africa

South Africa

The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

. This was the second Union Parliament. The governing South African Party (SAP) of General Louis Botha emerged from the election as the largest party, but did not receive an overall majority.

Botha formed a minority government, during the second successive term of the SAP in office, which survived with some parliamentary support from the official opposition Unionist Party.

Delimitation of electoral divisions

The South Africa Act 1909

South Africa Act 1909

The South Africa Act 1909 was an Act of the British Parliament which created the Union of South Africa from the British Colonies of the Cape of Good Hope, Natal, Orange River Colony, and the Transvaal Colony. The Act also made provisions for admitting Rhodesia as a fifth province of the Union in...

 had provided for a delimitation commission to define the boundaries for each electoral division. The representation by province, under the second delimitation report of 1913, is set out in the table below. The figures in brackets are the number of electoral divisions in the previous (1910) delimitation. If there is no figure in brackets then the number was unchanged.

Provinces	Cape	Natal	Orange Free State	Transvaal	Total
Divisions	51	17	17	45 (36)	130 (121)

Nominations

Since the last general election, the National Party (NP) had split away from the South African Party (SAP). The formal foundation of the new party had been in 1914.

Eight of the 130 seats were uncontested. There were unopposed returns for 5 Unionist Party, 2 SAP and 1 NP candidates.

In the 122 contested constituencies, the candidates nominated included 86 SAP, 83 NP, 39 Unionist and 49 Labour.

Party attitudes

General Botha stood for a policy of conciliation between Afrikaans and English speaking white people. The SAP was mostly supported by moderates of both races. General Hertzog led a republican party which supported a two streams policy – the two white races developing separately. The Unionists were anxious to maintain the imperial connection. The Unionists accordingly preferred the continuation in power of the SAP to the prospect of an NP government.

Results

The vote totals in the table below may not give a complete picture of the balance of political opinion, because of unopposed elections (where no votes were cast) and because most contested seats were not fought by a candidate from all major parties.

The total registered electorate was 365,307. The votes cast were 261,433 (including 4,330 spoilt ballots).

	Party	Seats	Seats %	Votes	Votes %	Leader
	South African Party South African Party The South African Party was a political party that existed in the Union of South Africa from 1911 to 1934.-History:The outline and foundation for the party was realized after the election of a 'South African party' in the 1910 South African general election under the leadership of Louis Botha...	54	41.54	94,285	36.67	General Louis Botha Louis Botha Louis Botha was an Afrikaner and first Prime Minister of the Union of South Africa—the forerunner of the modern South African state...
	Unionist Party Unionist Party (South Africa) The Unionist Party of South Africa was a pre-apartheid South African political party, which contested elections to the Union of South Africa parliament from the 1910 South African general election until its merger into the South African Party just before the 1921 South African general...	39	30.00	49,917	19.42	Sir Thomas Smartt
	National Party National Party (South Africa) The National Party is a former political party in South Africa. Founded in 1914, it was the governing party of the country from 4 June 1948 until 9 May 1994. Members of the National Party were sometimes known as Nationalists or Nats. Its policies included apartheid, the establishment of a...	27	20.77	75,623	29.41	General J. B. M. Hertzog
	Independent Independent (politician) In politics, an independent or non-party politician is an individual not affiliated to any political party. Independents may hold a centrist viewpoint between those of major political parties, a viewpoint more extreme than any major party, or they may have a viewpoint based on issues that they do...	6	4.62	12,383	4.82	-
	Labour Party Labour Party (South Africa) The South African Labour Party, formed in March 1910 following discussions between trade unions and the Independent Labour Party of Transvaal, was a professedly democratic socialist party representing the interests of the white working class.-History:...	4	3.08	24,755	9.63	Colonel F. H. P. Creswell Frederic Creswell Colonel Frederic Hugh Page Creswell was a British-born Labour Party politician in South Africa. He was Minister of Defence from 1924 to March 1933.-Early life:...
	Socialist	-	-	140	0.05	Bill Andrews William H. Andrews (unionist) William Henry Andrews , commonly known as Bill Andrews, was the first chairman of the South African Labour Party and the first General Secretary of the Communist Party of South Africa...
	Total	130

The 27 NP candidates elected represented three of the four provinces - 7 from Cape Province, 16 from the Orange Free State and 4 from Transvaal.