The aim of this study was to translate Perfectionism Cognitions Inventory (PCI; Flett, Hewitt, Blankstein & Gray, 1998) into Turkish and to conduct its validity and reliability studies with a sample of university students. PCI measures perfectionistic cognitions by focusing on automatic thoughts about perfectionism. The inventory composed of 25 Likert type items rated on a 4-point scale. The study was conducted with participants from a public university in Ankara in two phases. The first phase of the study included 418 students (238 female and 180 male). In the second phase, 715 students (351 female and 364 male) participated in the study. Results provided evidence for reliability and validity of the Turkish version of PCI in a sample of university students.