Fletcher is an unincorporated community in western Jefferson County, Missouri, United States.
The community lies on Calico Creek approximately one-half mile east of the Jefferson-Washington county line. It is located approximately ten miles west of De Soto along Missouri Route H.
A post office called Fletcher has been in operation since 1896. The community was named after Missouri governor Thomas Clement Fletcher (1827–1899), who served 1865–1869.