Căianu is a commune located in Cluj County within the Transylvania region of Romania. It serves as an administrative division composed of six distinct villages.
The constituent villages of the commune include Bărăi (Báré), Căianu, Căianu Mic (Kiskályán), Căianu-Vamă (Kályánivám), Vaida-Cămăraș (Vajdakamarás), and Văleni (Lárgatanya).