List of state leaders in the 20th century

Millennium:	2nd millennium
Centuries:	19th century 20th century 21st century
Timelines:	19th century 20th century 21st century
State leaders:	19th century 20th century 21st century
Decades:	1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s
Categories:	Births – Deaths Establishments – Disestablishments

Lists of state leaders in the 20th century include:

• List of state leaders in the 20th century (1901–1950)
• List of state leaders in the 20th century (1951–2000)
• List of governors of dependent territories in the 20th century
• List of state leaders in 20th-century British South Asia