Cognomen Jewdokija (Евдокия 
, Євдокія , Jewdokija 
) , in the world, is quite a common family name. The cognomen Jewdokija is habitual in Bulgaria, where it is quite a common surname, Kyrgyzstan, where it is quite a rare surname, and Moldova. Measured by absolute frequency, this name is the most popular in Bulgaria, Kyrgyzstan, and Russia. Much more frequently, Jewdokija is the forename as well as the last name.