The following elections occurred in the year 1891.
North America
Canada
United States
United States Senate
- 1890–91 United States Senate elections
- 1890–91 United States Senate elections
- 1891 United States Senate election in Arkansas
- 1891 United States Senate election in California
- 1891 United States Senate special election in California
- 1891 United States Senate election in Colorado
- 1891 United States Senate election in Connecticut
- 1891 United States Senate election in Florida
- 1891 United States Senate election in Georgia
- 1891 United States Senate election in Illinois
- 1891 United States Senate election in Indiana
- 1891 United States Senate election in Kansas
- 1891 United States Senate election in Louisiana
- 1891 United States Senate election in Missouri
- 1891 United States Senate election in Nevada
- 1891 United States Senate election in New Hampshire
- 1891 United States Senate election in New York
- 1891 United States Senate election in North Dakota
- 1891 United States Senate election in Pennsylvania
- 1891 United States Senate election in South Dakota
- 1891 United States Senate election in Virginia
- 1891 United States Senate election in Washington
- 1891 United States Senate election in Wisconsin
United States House of Representatives
United States gubernatorial
- 1891 Iowa gubernatorial election
- 1891 Kentucky gubernatorial election
- 1891 Maryland gubernatorial election
- 1891 Massachusetts gubernatorial election
- 1891 New York gubernatorial election
- 1891 Ohio gubernatorial election
- 1891 Rhode Island gubernatorial election
- 1891 United States gubernatorial elections
United States mayoral elections
Europe
- 1891 Cisleithanian legislative election
- 1891 Cypriot legislative election
- 1891 Dutch general election
- 1891 Faroese general election
- 1891 Norwegian parliamentary election
- 1891 Spanish general election