Cognomen Жумай (Jumai 
, Жумай 
, Joumai 
) , all over the world, is a common surname. The cognomen Жумай is habitual in Nigeria, where it is quite a rare surname, Malaysia, and Kyrgyzstan, where it is a rare surname. Measured by absolute frequency, it is commonest in Nigeria, China, and Malaysia. Also, Жумай is the forename as well as the last name.