Ulven concentration camp

Ulven concentration camp was established by the Nazi administration of occupied Norway in Os, Hordaland in June 1940, and was the first of its kind in Norway. It was designated a Polizeihäftlingslager, under the administration of the Nazi "Security Police" (SIPO).

Initially, prisoners were Jewish or Communist, but a broader array of members from prosecuted groups began arriving at the camp. Conditions were relatively benign until 1942, when Untersturmführer Otmar Holenia, nicknamed the Storm, took command and imposed harsher conditions.

Ulven was used for purposes of executing individuals for various reasons. It is not known how many were murdered in the camp.

In the course of the summer of 1943, all prisoners at Ulven were transferred to Espeland concentration camp nearby.