- Source: Femme Osage, Missouri
Femme Osage is an unincorporated community in southwest St. Charles County, in the U.S. state of Missouri. The community is on Missouri Route T along the bank of the Femme Osage Creek.
History
A post office Femme Osage was in operation from 1816 until 1933. The community takes its name from nearby Femme Osage Creek.