List of state leaders in the 19th century

Lists of state leaders in the 19th century include:

• List of state leaders in the 19th century (1801–1850)
• List of state leaders in the 19th century (1851–1900)
• List of state leaders in 19th-century British South Asia subsidiary states
• List of state leaders in the 19th-century Holy Roman Empire
• List of governors of dependent territories in the 19th century