Cognomen Irha (Irha 
, Iraha 
, Ирха 
) , in the entire world, is quite a rare family name. The family name Irha is habitual in Estonia, where it is quite a rare surname, Belarus, where it is a rare surname, and Slovakia. Measured by absolute frequency, it is the most numerous in Russia, Indonesia, and India. Also, Irha is the forename as well as the last name.