Last name Benaja (Benaja 
) , all over the world, is a rare family name. The surname Benaja is habitual in the Democratic Republic of the Congo, where it is a rare surname, Italy, where it is a very rare surname, and Spain, where it is an extremely rare surname. In absolute terms, it most frequently occurs in the Democratic Republic of the Congo, Italy, and India. More prevalently, Benaja is the forename as well as the last name.