Cognomen Diophantus (Diophantus , Диофант , Diophante ) , in all the world, is an extremely rare last name. Predominantly, Diophantus is the forename as well as the last name.
Diofanto, and Diofantos
Mabutin, and Tabbilos
, Диофант 
, Diophante 
) , in all the world, is an extremely rare last name. Predominantly, Diophantus is the forename as well as the last name.