Guaira

Guaira may refer to:


 * Guayrá, a former region of the Spanish Empire in what is now modern Paraguay and Brazil
 * Guaíra Falls, former waterfalls on the Paraná River along the border between Brazil and Paraguay

Brazil

 * Guaíra, Paraná
 * Guaíra Airport
 * Guaíra, São Paulo

Paraguay

 * Guairá Department
 * Salto del Guairá, Canindeyú Department

Venezuela

 * La Guaira State
 * La Guaira, its capital city