Last name Hiora (Hiora 
, Хиора 
) , all over the world, is a very rare family name. The cognomen Hiora is characteristic of Russia, where it is a very rare surname, Israel, and Ukraine, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Russia, Brazil, and Ukraine. Much less frequently, Hiora is the forename as well as the last name.