Cognomen Гуяр (Hujar 
, Гуяр 
) , worldwide, is a rare last name. The surname Гуяр is characteristic of Czechia, where it is a rare surname, the United States, where it is a very rare surname, and Ukraine. Measured by absolute frequency, it most frequently occurs in the United States, India, and Czechia. Much less frequently, Гуяр is the forename as well as the last name.