1803 Irish rebellion of 1803 1803 in the United States Harpers Ferry Model 1803 1803 in Canada 1803–1804 Massachusetts legislature 1802–1803 Massachusetts legislature 1803 United States gubernatorial elections 1803 in sports Patrick Heron (1736–1803) 1803 in France 1803 Tennessee gubernatorial election Levy en Masse Act 1803 British anti-invasion preparations of 1803–05 Charles Heywood (1803–1853) 1803 in the United Kingdom Nancy (1803 ship) 1803 Gatton by-election John Sanford (1803–1857) Additional Forces Acts 1803 Ottoman invasion of Mani (1803) Shō Sei (r. 1803) United Nations Security Council Resolution 1803 Frederik Christian Kaas (1725–1803) Battle of D…

Delhi (1803) Félix Baciocchi (1803–1866) Joseph Richardson (1755–1803) USS Syren (1803) French frigate Hortense (1803) John Simpson (died 1803) Recollections of a Tour Made in Scotland, A. D. 1803 George Stevens (1803–1894) French ship Impétueux (1803) List of acts of the Parliament of the United Kingdom from 1803 Cornwallis (1803 ship) Windows 10, version 1803 1803 United States House of Representatives election in Ohio 1803 United States House of

Representatives elections in Virginia 1802–03 United States Senate elections 1803 United States Senate election in New York Edward Foley (1747–1803) Thomas Edlyne Tomlins (1803–1875) 1802–1803 United States House of Representatives elections in Vermont 1802–1803 United States House of Representatives elections in Massachusetts Thomas Conolly (1738–1803) List of shipwrecks in 1803 1803 in Ireland 1803 New York's 6th congressional district special election Caribbean campaign of 1803–1810 1803 Georgia's at-large congressional district special election NGC 1803 Adolphe (1803 privateer lugger) Henry Lowry-