Family name Zahay (Zahay 
) , all around the world, is a very rare cognomen. The family name Zahay is characteristic of Israel, where it is a very rare surname, Germany, where it is an extremely rare surname, and the United States. Not in comparison with a country's population, it is the most numerous in the United States, Germany, and India. Much less frequently, Zahay is the forename as well as the last name.