Barreiro
Barreiro may refer to:
People
- Bruno Barreiro (born 1965), American politician
- Gustavo Barreiro (1959–2019), American politician
- Jose Carlos Barreiro, São Toméan politician
- Manu Barreiro (born 1986), Spanish footballer
Places
- Barreiro, Portugal
- Barreiro, Cape Verde, a town in Cape Verde
- Barreiro River (disambiguation), several rivers in Brazil and Portugal