Messer is an unincorporated community located on State Highway 93 in Choctaw County, Oklahoma, United States. A post office was established at Messer, Indian Territory on January 4, 1907. It closed on February 29, 1916. At the time of its founding, Messer was located in Kiamitia County, a part of the Apukshunnubbee District of the Choctaw Nation.