Wajay is a ward of the city of Havana, the capital of Cuba, belonging to the municipal borough of Boyeros. In 2011, it had a population of 47,954. Its origins go back to the period bequeathed by the aborigines of the Cacique Habaguanex region, when the Indians who populated the island nicknamed the humid lands full of large trees, streams and gaps with …Wajay is a ward of the city of Havana, the capital of Cuba, belonging to the municipal borough of Boyeros. In 2011, it had a population of 47,954. Its origins go back to the period bequeathed by the aborigines of the Cacique Habaguanex region, when the Indians who populated the island nicknamed the humid lands full of large trees, streams and gaps with the expressions: Guajay> Yubajay> Jubajay, territories that will form part after Havana.