Bernhoff Otelius Hansen (August 17, 1877 – December 22, 1950) was a Norwegian wrestler who competed in the 1904 Summer Olympics for the United States. He was born in Rognan in the municipality of Saltdal in Norway. Originally he was a Norwegian wrestler in Nordland, but one and a half years before the 1904 Olympic Games, he left Norway for the United States. He was affiliated with the Brooklyn-based Norwegian Turnverein gymnastic society. Hansen was sponsored by the Norwegian Turnverein at the Olympics in 1904. Hansen won three matches at the 1904 Olympics and won a gold medal in heavyweight category.