Kosa
- Bolhrad Raion
- Cosa
- KOSA-TV
- Khosa (disambiguation)
- Kids Online Safety Act
- Kos (disambiguation)
- Kosa (Maoist)
- Kosa (folklore)
- Kosa (river)
- Kosa (sports manufacturer)
- Kosa (surname)
- Kosa Lek
- Kosa Pan
- Kosa language
- Kosa phenomenon
- Kosa, Azerbaijan
- Kosa, Croatia
- Kosa, Russia
- Kosha
- Kossa (disambiguation)
- Koza (disambiguation)
- Kōsa
- Kōsa, Kumamoto
- Xhosa (disambiguation)