The following elections were held in the year 1805.
North America
United States
United States lieutenant gubernatorial 1805 Connecticut lieutenant gubernatorial election
United States gubernatorial 1805 Connecticut gubernatorial election 1805 Georgia gubernatorial election 1805 Maryland gubernatorial election 1805 Massachusetts gubernatorial election 1805 New Hampshire gubernatorial election 1805 New Jersey gubernatorial election 1805 North Carolina gubernatorial election 1805 Pennsylvania gubernatorial election 1805 Rhode Island gubernatorial election 1805 Tennessee gubernatorial election 1805 United States gubernatorial elections 1805 Vermont gubernatorial election 1805 Virginia gubernatorial election
United States Senate 1804 and 1805 United States Senate elections
United States House of Representatives 1804–05 United States House of Representatives elections 1805 Connecticut's at-large congressional district special election 1805 Delaware's at-large congressional district special election 1805 United States House of Representatives elections in Kentucky 1805 Maryland's 4th congressional district special election 1805 Massachusetts's 11th congressional district special election 1805 New York's 2nd congressional district special election 1805 New York's 3rd congressional district special election 1805 United States House of Representatives elections in North Carolina 1805 North Carolina's 5th congressional district special election 1805 North Carolina's 10th congressional district special election 1805 Pennsylvania's 4th congressional district special election 1805 Pennsylvania's 11th congressional district special election 1805 United States House of Representatives elections in Tennessee 1805 United States House of Representatives elections in Virginia