Byron is a city in Olmsted County, Minnesota, United States, approximately 5 miles west of Rochester on U.S. Route 14. It is surrounded by Kalmar Township. The population was 4,914 at the 2010 census.
Local industries are in the form of farm services and printing. A grain elevator is situated next to the rail line that runs through town, which is owned by the Dakota, Minnesota and Eastern Railroad. Schmidt Printing (a subsidiary of Taylor Corporation) is another major company in town. Byron is also a bedroom community for nearby Rochester.