Banner is an unincorporated community in Iron County, in the U.S. state of Missouri.
A post office called Banner was established in 1924, and remained in operation until 1956. It is unknown why the name "Banner" was applied to this community. A variant name was "Brule".
Coordinates: 37°41′49″N 90°50′04″W / 37.69694°N 90.83444°W