Căşeiu is a commune located in Cluj County within the Transylvania region of Romania. It serves as an administrative division composed of ten distinct villages.
The commune includes the following settlements: Cășeiu, Comorâța, Coplean (Kapjon), Custura (Dumbráva), Gârbău Dejului (Désorbó), Guga (Guga), Leurda, Rugășești (Felsőkosály), Sălătruc (Szeletruk), and Urișor (Alőr).