Places beginning with OS in Kansas, United States
- Osage City
- Osage City
- Osage County
- Osage, Township of
- Osage, Township of
- Osage, Township of
- Osage, Township of
- Osage, Township of
- Osawatomie
- Osawatomie, City of
- Osawatomie, Township of
- Osborne
- Osborne, City of
- Osborne County
- Osborne, Township of
- Oscar (historical)
- Osgood
- Oskaloosa
- Oskaloosa, Township of
- Osro
- Oswego
- Oswego, City of
- Oswego, Township of