Hester is an unincorporated community in northern Marion County, in the U.S. state of Missouri.
The community is on a ridge just west of the South Fabius River between Troublesome Creek to the south and Grassy Creek to the north. Adjacent communities are Maywood three miles to the north-northeast in Lewis County and Naomi, approximately four miles to the west.
The community had a post office from 1848 to 1904, which was in the home owned by Daniel Boone's daughter, Mrs. Elizabeth Coons. However, the origin of the name is uncertain.