Owatonna was first settled in 1853 around the Straight River. The community was named after the Straight River, which in the Dakota language is Wakpá Owóthaŋna. The earliest the Owatonna area was settled was in 1854 and platted in September 1855, but it was incorporated as a town August 9, 1858, then as a city on February 23, 1865.