Last name Dirak (ดิเรก 
, Dirak 
, Дірак 
) , in the entire world, is a rare cognomen. The cognomen Dirak is characteristic of Turkey, where it is a rare surname, Morocco, where it is a very rare surname, and Colombia. In absolute terms, it most frequently occurs in Turkey, India, and Morocco. Much more prevalently, Dirak is the forename as well as the last name.