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
v t e

Lists of state leaders in the 20th century include:

v t e Lists of state leaders by century
4th–3rd mill. BC	4th–3rd millennia BC
2nd millennium BC	20th century 19th 18th 17th 16th 15th 14th 13th 12th 11th BC
1st millennium BC	10th 9th 8th 7th 6th 5th 4th 3rd 2nd 1st BC
1st millennium	1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th HRE
2nd millennium	11th HRE 12th HRE 13th HRE 14th HRE 15th HRE SA 16th HRE SA 17th HRE SA 18th HRE SA 19th 1801–1850 1851–1900 HRE SA 20th 1901–1950 1951–2000 SA
3rd millennium	21st Current

This article includes a politics-related list of lists.