1803

Centuries:	18th century 19th century 20th century
Decades:	1780s 1790s 1800s 1810s 1820s
Years:	1800 1801 1802 1803 1804 1805 1806
Categories:	Births - Deaths Establishments - Publications
Media:	1803 (Events)

1803 was a common year of the Gregorian calendar and a common year of the Julian calendar, the 1803rd year of the Common Era (CE), the 3rd year of the 19th century, and the 4th year of the 1800s decade. As of the start of 1803, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.