Kobenz is a market municipality in the Murtal District of Styria, Austria. It lies north of the Mur in the Murtal region, on the eastern edge of the Aichfeld and in the southern part of the Seckau Basin, near the foothills of the Seckau Tauern.
The municipality is located near Knittelfeld and borders the municipalities of Seckau, Sankt Marein-Feistritz, Sankt Margarethen bei Knittelfeld, Knittelfeld and Spielberg.