Onstad is a Norwegian surname. Notable people with the surname include: Chris Onstad (born 1975), American writer, cartoonist, and artist Erik Gjems-Onstad (1922-2011), Norwegian resistance member, lawyer, and politician Kari Onstad (born 1941), Norwegian singer and actress Katrina Onstad, Canadian critically acclaimed journalist and novelist Kenton Onstad (born 1953), American politician, member of the North Dakota House of Representatives Kristian Flittie Onstad (born 1984), Norwegian professional footballer defender Mike Ohnstad (1926), Minnesota politician Niels Onstad (1909–1978), Norwegian shipping executive Ole Gjems-Onstad (born 1950), Norwegian jurist Otto Onstad (1874–1961), American politician Pat Onstad (born 1968), Canadian professional soccer goalkeeper See also Onstad Township, Minnesota, municipality in the State of Minnesota Henie-Onstad Art Centre, art museum in Oslo, Norway Norwegian-language surnames