Deventer is an unincorporated community in eastern Mississippi County, Missouri, United States. It is located on Route 77 about ten miles southeast of Charleston.
The name of the town is speculated to be originated from the Dutch city Deventer, Overijssel, The Netherlands. It is therefore very well possible that Dutch immigrants settled in the area and named a, nowadays unpopulated, settlement "Deventer".
Coordinates: 36°49′20″N 89°12′42″W / 36.82222°N 89.21167°W / 36.82222; -89.21167