General elections were held in South Africa on 8 February 1921 to elect the 134 members of the House of Assembly.^[1] The South African Party, which since the previous election had fused with the Unionist Party, won an absolute majority.

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Quick Facts All 134 seats in the House of Assembly 68 seats needed for a majority, Registered ...

1921 South African general election

← 1920 8 February 1921 1924 →
All 134 seats in the House of Assembly 68 seats needed for a majority
Registered	499,531
Turnout	55.60% ( 11.34pp)
First party Second party Third party   Leader Jan Smuts J. B. M. Hertzog Frederic Creswell Party South African National Labour Last election 50.51%, 66 seats[lower-alpha 1] 32.62%, 43 seats 14.65%, 21 seats Seats won 77 44 10 Seat change 11 1 11 Popular vote 137,389 105,039 29,406 Percentage 49.90% 38.15% 10.68% Swing 0.61pp 0.33pp 3.97pp
Results by province
Prime Minister before election Jan Smuts South African Elected Prime Minister Jan Smuts South African

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The South Africa Act 1909 had provided for a delimitation commission to define the boundaries for each electoral division. The representation by province, under the third delimitation report of 1919, is set out in the table below. The figures in brackets are the number of electoral divisions in the previous (1913) delimitation. If there is no figure in brackets then the number was unchanged.^[2]

The electoral divisions used for this general election were the same as those for the 1920 election.