| Raja Kishan Singh | |
| Raja of Kishangarh Rajkumar of Marwar | |
| Reign: | – May 1615 |
| Successor: | Sahasmal |
| Birth Name: | Krishan Singh |
| Birth Date: | 28 April 1575 |
| Birth Place: | Jodhpur,Marwar,Rajputana |
| Death Date: | May, 1615 |
| Death Place: | Ajmer,Ajmer Subah,Mughal Empire |
| Spouse: | Bhatiyaniji Sujan Deiji d.of Kunwar Dayaldas son of Yuvraj Khet Singh of Jaisalmer Sisodiniji Phool Deiji Hadiji Roop Deiji of Bundi |
| Issue: | Sahas Mal Jag Mal Bhar Mal Hari Singh |
| Full Name: | Raja Kishan Singh Rathore |
| House: | Rathore |
| Father: | Raja Udai Singh Rathore |
| Mother: | Kachwahiji (Rajawatji) Manrang Deiji d.of Raja Askaran of Amber later Gwalior |
| Religion: | Hinduism |
Raja Kishan Singh (28 April 1575 – May 1615) was the son of Mota Raja Udai Singh of Marwar and the founder of Kishangarh and the eponymous Kishangarh State.His sister Manawati Bai was the chief consort of Mughal Emperor Jahangir and mother of his successor the fifth Mughal Emperor Shah Jahan.
Born on 28 April 1583 as Kishan Chand, he was the son of Raja Udai Singh, ruler of Marwar.[1] His mother was Rajavat Kachwahi Manrang Deviji, the principal consort of his father [2] and the daughter of Raja Askaran of Narwar, who was also briefly Raja of Amber before being ousted in favour of his uncle, Bharmal.[3] He was also the younger full-brother of Sur Singh, ruler of Marwar and Mani Bai, wife of Jahangir and mother of Shah Jahan.
Kishan Singh was sent to Mughal service at a very young age. In 1594, he was confirmed by Akbar, the grant of a territory southeast-ward of Jodhpur.[4]
In 1607, he was granted a mansab of 1000 Zat and 500 Sawar by Jahangir.[5]
In 1608, he assisted Mahabat Khan against the Rana of Mewar and had been wounded on the leg by a spear. For his laudable service, Jahangir raised his rank to 2000 Zat and 1000 Sawar.[6] He was also granted the jagir of Setholav.[7]
In 1609, he founded the town of Kishangarh on the site of Setholav.[8]
In 1612, he was granted the title of "Maharaja" by Jahangir. In March 1615, his mansab was raised to 3000 Zat and 1500 Sawar.[9]
Kishan Singh died in May 1615 near Ajmer. The incident is described by Jahangir as follows:[10]
He was succeeded by his son Sahas Mal.