| Kantavati Devi | |
| Full Name: | Kantavati Devi Jha |
| Queen consort of Nepal | |
| Royal House: | House of Shah (by marriage) |
| Spouse: | Rana Bahadur Shah |
| Death Date: | 31 October 1799 |
| House-Type: | Dynasty |
| Issue: | Girvan Yuddha Bikram Shah Dhanashahi Lakshmi Devi |
| Birth Place: | Nepal |
| Death Place: | Arya Ghat, Devapatam, Nepal |
Kantavati Devi (Kantawati Devi Jha) (?–31 October 1799) was the favourite wife of Rana Bahadur Shah, King of Kingdom of Nepal. She was a Mithila Brahmin from Mohtari. She was the mother of Girvan Yuddha Bikram Shah, who was made heir to the throne by Bahadur Shah for being the son of his favourite wife. She died of smallpox.