Jaswan was a precolonial Indian state centred at Rajpura; in modern-day Himachal Pradesh. It was founded in 1170 by Raja Purab Chand; a scion of the ancient royal family of Kangra.

In 1815; the Sikh Maharaja Ranjit Singh ordered all his available forces to assemble at Sialkot. The raja of Jaswan; Ummed Singh (1800-1849); failed to obey the summons and was fined a sum beyond his means. The raja was forced to relinquish his state to the Sikh emperor; and accepted a jagir of 21 villages and 12;000 Rs per annum. In 1848; he joined the Sikh in an unsuccessful revolt against the British. His palaces were plundered and razed to the ground; and his territory annexed. He was stripped of his title and exiled to Almora; where he died a year later.

In 1877; the jagir in Jaswan; along with several other former properties in Rajpura and Amb; was restored to Ummed's grandson Ran Singh (b. 1833); who also later acquired the jagir of Ramkot in Jammu upon marriage to a granddaughter of Maharaja Gulab Singh.