List of elections in 1803

The following elections were held in the year 1803.

North America

 * 1803 Connecticut's at-large congressional district special election
 * 1803 Georgia's at-large congressional district special election
 * 1803 United States House of Representatives elections in Kentucky
 * 1803 United States House of Representatives elections in Maryland
 * 1802–1803 United States House of Representatives elections in Massachusetts
 * 1803 United States House of Representatives election in New Jersey
 * 1803 New York's 6th congressional district special election
 * 1803 New York's 7th congressional district special election
 * 1803 United States House of Representatives elections in North Carolina
 * 1803 United States House of Representatives election in Ohio
 * 1803 United States House of Representatives elections in South Carolina
 * 1803 United States House of Representatives election in Tennessee
 * 1802–1803 United States House of Representatives elections in Vermont
 * 1803 United States House of Representatives elections in Virginia
 * 1802 and 1803 United States Senate elections

United Kingdom

 * 1803 Gatton by-election