10245 Inselsberg, provisional designation 6071 P-L, is a Gefion asteroid from the central regions of the asteroid belt, approximately in diameter. It was discovered on 24 September 1960, by Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at Palomar Observatory in California, United States. The likely S-type asteroid was named for the German mountain Großer Inselsberg.