Shelby is a city in Richland County in the U.S. state of Ohio, northwest of the city of Mansfield. It is part of the Mansfield, Ohio Metropolitan Statistical Area. The population was 9,821 at the 2000 census.
Prior to white settlement, various Native Americans called the Ohio country their home. They include the Shawnee, the Delaware, the Mohican, and the Wyandot tribes.
In April 1818, Stephen & Sarah Marvin and her mother, Mrs. Deborah Moyer, arrived from Connecticut. Other early settlers were Mr. & Mrs. Eli Wilson, Mr. & Mrs. Henry Whitney, and Revolutionary War veteran James Gamble and his son, John.