Surname Penek (Penek 
, เป็นเอก , Пенек 
) , in all the world, is a rare last name. The surname Penek is characteristic of Estonia, where it is a rare surname, Thailand, and Turkey, where it is a very rare surname. In absolute terms, it is the most numerous in Thailand, Turkey, and Russia. Likewise, Penek is the forename as well as the last name.