Hans Karl Möser, or Hans Moeser, (April 7, 1906 – † November 26, 1948) was a German Nazi SS officer at the Neuengamme, Auschwitz and Mittelbau-Dora concentration camps during World War II. Rising to the rank of SS-Obersturmführer, he was captured at the end of the war and tried by the United States Military Government Court for war crimes. The only one among 19 defendants at the Dora Trial sentenced to death, Möser was executed at Landsberg Prison in 1948 (death by hanging).