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 governors of dependent territories in the 19th century
 * List of state leaders in 19th-century British South Asia subsidiary states
 * List of state leaders in the 19th-century Holy Roman Empire