UDK may refer to:Berlin University of the Arts, from German Universität der Künste Berlin, UdK UEFI Development Kit Unreal Development Kit, the freely available development kit for Unreal Engine 3 Universal Decimal Classification, from Croatian Univerzalna decimalna klasifikacija "UDK", a song by Olivia O'Brien from her 2019 album Was It Even Real? The University Daily Kansan, the student newspaper of the University of Kansas