Bixby is an extinct town in Perkins County, in the U.S. state of South Dakota. The GNIS classifies it as a populated place.
A post office was established at Bixby in 1895, and remained in operation until 1951. The community derives its name from the nearby BXB Ranch.
Coordinates: 45°08′54″N 102°33′43″W / 45.14833°N 102.56194°W