Cognomen Carpus (Carpus 
, Carpo 
) , all around the world, is quite a rare family name. The cognomen Carpus is habitual in Philippines, where it is quite a rare surname, Qatar, where it is a rare surname, and Kuwait. Not in comparison with a country's population, the name is most common in Philippines, the United States, and Italy. Much less frequently, Carpus is the forename as well as the last name.