The following elections occurred in the year 1921.
1921 Belgian general election
1921 Italian general election
1921 Northern Ireland general election
1921 Norwegian parliamentary election
Africa
1921 South African general election
Asia
1921 Ceylonese Legislative Council election
1921 Persian legislative election
Americas
Canada
1921 Canadian federal election
1921 Alberta general election
1921 Edmonton municipal election
1921 Saskatchewan general election
1921 Toronto municipal election
1921 Guatemalan presidential election
United States
1921 New York state election
1921 North Dakota recall election
Europe
1921 Belgian general election
Irish elections
1921 Northern Ireland general election
Italian general election
Norwegian parliamentary election
1921 Portuguese legislative election
Free State of Prussia (Germany): Landtag of Prussia election
1921 Swedish general election
United Kingdom: 1921 Bedford by-election 1921 Orkney and Shetland by-election 1921 Cardiganshire by-election 1921 East Dorset by-election 1921 Lewisham West by-election 1921 Louth by-election 1921 Northern Ireland general election 1921 Penistone by-election 1921 Penrith and Cockermouth by-election 1921 Southwark South East by-election 1921 Westminster Abbey by-election 1921 Woolwich East by-election