Maryden is an unincorporated community in Washington County, in the U.S. state of Missouri.[1]
A post office called Maryden was established in 1898, and remained in operation until 1903.[2] Annette Mary Denby, an early postmaster, named the place after herself using parts of her middle and last names.[3] A variant name was "Hickory Grove".[3] The community once had Hickory Grove Schoolhouse, now defunct.[4]