Last name Алрой (Alroy 
, Алрой 
) , in all the world, is a rare family name. The surname Алрой is characteristic of Israel, where it is quite a rare surname, Australia, where it is a very rare surname, and Indonesia. Measured by absolute frequency, it is commonest in Israel, Indonesia, and the United States. More prevalently, Алрой is the forename as well as the last name.