Spencer is a town in Washington Township, Owen County, Indiana, United States. The population was 2,217 at the 2010 census. It is the county seat of Owen County.
Spencer is part of the Bloomington, Indiana Metropolitan Statistical Area.
Spencer is located at 39°17′13″N 86°45′51″W / 39.28694°N 86.76417°W / 39.28694; -86.76417 (39.286848, -86.764225).