Barreira or Barreiras (Portuguese meaning "barrier" and "barriers", respectively) might refer to:

• Luís Barreira, a Portuguese mathematician

• Barreira, Ceará
• Barreiras, Bahia
  • Barreiras Airport
• Barreiras do Piauí, Piauí

• Barreiras, a village in Peral, Cadaval, Lisbon District

• Barreira do Inferno Launch Center, also referred to as Barreira do Inferno, a Brazilian rocket launch base
• Barreira Megalithic Complex, a Portuguese megalithic site

This disambiguation page lists articles associated with the title Barreira.
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