Cognomen ジラク (Girak 
, ジラク) , all around the world, is a very rare surname. The cognomen ジラク is habitual in Austria, where it is a rare surname, New Zealand, where it is a very rare surname, and Turkey. Not in comparison with a country's population, the name is most common in Turkey, India, and Austria. Also, ジラク is the forename as well as the last name.