Onstad is a Norwegian surname. Notable people with the surname include:
- Chris Onstad (born 1975), American writer, cartoonist, and artist
- Erik Gjems-Onstad (1922âÂÂ2011), Norwegian resistance member, lawyer, and politician
- Kari Onstad (1941âÂÂ2020), Norwegian singer and actress
- Katrina Onstad, Canadian journalist and novelist
- Kenton Onstad (born 1953), American politician, member of the North Dakota House of Representatives
- Kristian Flittie Onstad (born 1984), Norwegian professional football defender
- Mike Ohnstad (born 1926), Minnesota politician
- Niels Onstad (1909âÂÂ1978), Norwegian shipping executive
- Oda Utsi Onstad (born 1990), Norwegian long and triple jumper
- Ole Gjems-Onstad (born 1950), Norwegian jurist
- Otto Onstad (1874âÂÂ1961), American politician
- Pat Onstad (born 1968), Canadian professional soccer goalkeeper
See also