Family name เกร็ก (Krek 
, เกร็ก, Gregrg) , all over the world, is quite a rare cognomen. The surname เกร็ก is habitual in Southern Europe, particularly Slovenia, where it is quite a common surname, Montenegro, and Bosnia and Herzegovina. In absolute terms, the name is most common in Bosnia and Herzegovina, Slovenia, and the United States. Very seldom, เกร็ก is the forename as well as the last name.