Cognomen Inina (Inina 
, Инина 
) , across the world, is a rare surname. The last name Inina is habitual in the Democratic Republic of the Congo, where it is a rare surname, Russia, and Kazakhstan. Measured by absolute frequency, it most frequently occurs in Russia, the Democratic Republic of the Congo, and China. Very seldom, Inina is the forename as well as the last name.