18th century List of state leaders in the 19th century (1801–1850) See also List of state leaders in the 17th-century Holy Roman Empire List of state leaders...

Lists of state leaders by century: List of state leaders in the 14th century List of state leaders in the 15th century List of state leaders in the 17th century...

16th century List of state leaders in the 17th century See also List of state leaders in the 15th-century Holy Roman Empire List of state leaders in 15th-century...

Lists of state leaders by century List of state leaders in the 16th century List of state leaders in the 17th century List of state leaders in the 19th...

a list of heads of state, government leaders, and other rulers in any given century. List of state leaders in the 21st century Current state leaders '24...

State leaders in the 18th century BC – State leaders in the 16th century BC – State leaders by year This is a list of state leaders in the 17th century...

Lists of state leaders by century List of state leaders in the 12th century List of state leaders in the 13th century List of state leaders in the 15th...

State leaders in the 17th century BC – State leaders in the 15th century BC – State leaders by year This is a list of state leaders in the 16th century...

This is a list of state leaders in the 19th century (1801–1850) AD, except for the leaders within British south Asia and its predecessor states, and those...

This is a list of the top-level leaders for religious groups with at least 50,000 adherents, and that led anytime from January 1, 1601, to December 31...