Family name Янай (Janeo 
, Janaj 
, Ianai 
) , across the world, is quite a rare last name. The cognomen Янай is habitual in Philippines, where it is quite a rare surname, Romania, where it is a rare surname, and United Arab Emirates. Measured by absolute frequency, it is commonest in Philippines, India, and Romania. Very seldom, Янай is the forename as well as the last name.