Family name Ю. (Jurij 
, Ю. 
, Ju. 
) , in the entire world, is a rare cognomen. The cognomen Ю. is habitual in Slovenia, where it is quite a rare surname, Bulgaria, where it is a rare surname, and North Macedonia. Measured by absolute frequency, it is the most numerous in Slovenia, Poland, and Bulgaria. Much more frequently, Ю. is the forename as well as the last name.