Surname Rejus (Rejus 
) , all around the world, is a very rare last name. The last name Rejus is habitual in Poland, where it is a very rare surname, France, and Argentina, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Poland, France, and the United States. More prevalently, Rejus is the forename as well as the last name.