Family name Риха (Rikha 
, Riha 
, Rixa 
) , across the world, is a common surname. The family name Риха is habitual in Czechia, where it is quite a common surname, Maldives, and Austria, where it is quite a rare surname. In absolute terms, it is commonest in Czechia, the United States, and Bangladesh. Likewise, Риха is the forename as well as the last name.