Third Republic may refer to:

Sorted by continent. Ordered by year founded, then year collapsed, then alphabetical.

• Third Republic of Uganda (1979–1986)
• Third Republic of Ghana (1979–1993)
• Third Republic in the history of Niger (1992–1996)
• Third Nigerian Republic, planned for 1993, but never established
• Third Republic of Madagascar (1993–2010)

• Third Republic of Venezuela (1817–1819)
• Third Dominican Republic (1924–1965)
• Third Brazilian Republic (1937–1946)

• Third Philippine Republic (1946–1972)
• Third Republic of China (1949–1991)
• Third Republic of Korea (1963–1972)
• Third Cambodian Republic, also known as the "People's Republic of Kampuchea" (1979–1989)
• Third Republic of Vietnam (1990–present), a South Vietnamese government in exile

• French Third Republic (1870–1940)
• Third Czechoslovak Republic (1945–1948)
• Third Hellenic Republic of Greece, since 1974
• Third Portuguese Republic, since 1974
• Third Hungarian Republic, since 1989
• Third Polish Republic, since 1989
• Third Armenian Republic, since 1993

• All pages with titles containing Third Republic
• First Republic
• Second Republic
• Fourth Republic
• Fifth Republic
• Sixth Republic
• Seventh Republic
• Third Ukrainian Republic (disambiguation)