Other
- Annette Olson, Miss North Dakota 2006
- Clifford Olson (born 1940), Canadian serial killer
- Eric T. Olson (philosopher), American-born professor of philosophy at the University of Sheffield
- Gregory Olsen (born 1945), entrepreneur, third private citizen to fly into space with Space Adventures, Ltd.
- James S. Olson, American professor of history at Sam Houston State University
- James Olson, 17th president of the University of Missouri System
- Jim Olson, Seattle architect
- Truman O. Olson (1917–1944), U.S. Army soldier posthumously awarded the Medal of Honor
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