Owosso Downtown Historic District

The Duff Building is a commercial structure located at 118 West Exchange Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1985.

The Grow Block is a commercial building located at 120-122 West Exchange Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1985.

The Colin McCormick House is a historical house in Owosso, Michigan, designed by Edger Ingersoll, and is notable for its size. It has had only 4 owners in its more than 120-year history. The last member of the McCormick family died in the house at 107 years of age. Edger Ingersoll incorporated features like the slate roof, crocheted roof ridging, hipped roof, scalloped trim, and more. It lies at 220 E. Exchange. The house was added to the National Register of Historic Places in 1980.

The Steam Railroading Institute is located at 405 South Washington Street, Owosso, Michigan. It was founded in 1969 as the Michigan State University (MSU) Railroad Club. It became the Michigan State Trust for Railway Preservation, and later adopted its present name.The Steam Railroading Institute is an organization dedicated to the preservation, restoration, and operation of historical railroad equipment and items. It operates a heritage railroad which offers occasional passenger excursion trains using steam locomotives: Pere Marquette 1225 and Chicago and North Western 175.

The Lincoln School was built in 1915 in the Classical Revival style. The school was added to the National Register of Historic Places in August 2016. The building now houses the Lincoln House Apartments.

The Curwood Festival is a celebration of the American novelist James Oliver Curwood in Owosso, Michigan. Many of his novels were written in Curwood Castle on the banks of the Shiawassee River.

The Old Miller Hospital was constructed as a single-family home located at 121 Michigan Avenue in Owosso, Michigan; it was later converted to a private hospital. It was listed on the National Register of Historic Places in 1980.

The Oliver Street Historic District is a primarily residential historic district, located along Oliver Street between Third and Oak Street, as well as some adjacent sections of Williams and Goodhue Streets, in Owosso, Michigan. It was listed on the National Register of Historic Places in 1980.

Curwood Castle is a small castle, now a museum, located in Owosso, Michigan, built by the author James Oliver Curwood.

The George Pardee House is a single-family home located at 603 North Ball Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1980.

The Elias Comstock Cabin is a single-family home located at the corner of Curwood Castle Drive and John Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1980. It is the oldest residence still extant in the City of Owosso.

The Christian-Ellis House is a single-family home in Owosso, Michigan, built in 1895. It was listed on the National Register of Historic Places in 1980.