Cognomen مردخاي (Mordechai 
, Mordechaj 
, Mordehay 
) , all around the world, is a rare family name. The cognomen مردخاي is characteristic of Israel, where it is quite a rare surname, Hungary, and Greece, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Israel, Hungary, and the United States. More frequently, مردخاي is the forename as well as the last name.