Surname Ишай (Yishai 
, Ishai 
, Yshai 
) , in the world, is quite a rare last name. The cognomen Ишай is habitual in Israel, where it is quite a common surname, Cyprus, where it is quite a rare surname, and Myanmar, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Israel, India, and Nigeria. Also, Ишай is the forename as well as the last name.