Jaswant Singh of Marwar
| Raja Jaswant Singh I | |
|---|---|
| Maharaja of Marwar | |
Jaswant Singh Rathore of Marwar | |
| Maharaja of Marwar | |
| Reign | 6 May 1638 – 28 December 1678 |
| Coronation | 25 May 1638 |
| Predecessor | Gaj Singh |
| Successor | Ajit Singh |
| Subahdar of Gujarat | |
| Emperor | Aurangzeb |
| Term | 1659–1662 |
| Predecessor | Mirza Badi-uz-Zaman Safavi |
| Successor | Mahabat Khan II |
| Term | 1670–1672 |
| Predecessor | Bahadur Khan |
| Successor | Muhammad Amin Khan Turani |
| Born | 26 December 1626 Burhanpur, Deccan |
| Died | 28 December 1678 (aged 52) Jamrud, Khyber Pass |
| Spouses |
|
| Issue |
|
| House | Rathore |
| Father | Maharaja Gaj Singh |
| Mother |
|
| Religion | Hinduism |
Raja Jaswant Singh I (26 December 1626 – c. 28 December 1678) was the Rathore ruler of the Kingdom of Marwar in the western part of Rajputana (modern-day Rajasthan, India). He was a distinguished man of letters and author of noted literary works like Siddhant-Bodh, Anand Vilas and Bhasha-Bhushan.