Last name Orynkul (Орынкуль 
, Орынкул , Оринкул ) , in the world, is a very rare family name. The last name Orynkul is characteristic of Central Asia, particularly Kyrgyzstan, where it is a rare surname, and Kazakhstan, where it is a very rare surname. Predominantly, Orynkul is the forename as well as the last name.