Stepin Lug or Gaj is a park-forest and, for the most part, non-residential suburban settlement of Belgrade, the capital of Serbia. It is located in Belgrade's municipalities of Voždovac and Zvezdara. It is part of the forest complex Stepin Lug-Baba Velka-Torlak-Jajinci, which is the largest wooden area in Belgrade.
Birth house of vojvoda Stepa Stepanović in Kumodraž with Stepin Lug seen in the distance