Cognomen ユダ (Juda 
, ユダ 
) , throughout the world, is quite a rare family name. The cognomen ユダ is characteristic of Czechia, where it is quite a rare surname, Poland, and Austria, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Poland, Indonesia, and the United States. More frequently, ユダ is the forename as well as the last name.