Surname Баия (Bahia 
, Baía 
, Баия 
) , all over the world, is a common last name. The last name Баия is habitual in Cabo Verde, where it is quite a common surname, Brazil, where it is quite a rare surname, and Portugal. Measured by absolute frequency, the name is most common in Brazil, Philippines, and Algeria. Likewise, Баия is the forename as well as the last name.