Chandmani (Mongolian: Чандмань, jewel; also Chandman) signifies:
- the Mongolian term for Cintamani, a Buddhist symbol
- Chandmani Uul, a mountain in Mongolia
- Chandmani Uul Aimag, a historical Aimag (province) of Mongolia
- several Sums (districts) in different Aimags of Mongolia: