Fifth Republic may refer to:
Governments
Africa
- Fifth Republic of Niger (1999–2009)
Americas
- Fifth Brazilian Republic (1964–1985)
- Fifth Republic of Venezuela (1999–present)
Asia
- Fifth Republic of Korea (1981–1987)
- Fifth Republic of the Philippines (1986–present)
Europe
- Fifth Republic of Czechoslovakia (1990–1992)
- French Fifth Republic (1958–present)
- Fifth Roman Republic (1849–1850)
Other
- 5th Republic (TV series), a 2005 South Korean drama series
- Fifth Republic Movement, in Venezuela
See also
- First Republic
- Second Republic
- Third Republic
- Fourth Republic
- Sixth Republic
- Seventh Republic