Cognomen Μπέτυ (Bety 
, Μπέτυ) , throughout the world, is quite a common last name. The last name Μπέτυ is characteristic of Honduras, where it is quite a common surname, Cabo Verde, and Nicaragua, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Honduras, Mexico, and Indonesia. More frequently, Μπέτυ is the forename as well as the last name.