Kalyan Singh Kalvi was a politician from the Indian state of Rajasthan. He hailed from a small village Kalvi in Nagaur District of Rajasthan. He was the cabinet minister in government of India in 1991 with energy portfolio. He died soon after. He was elected to Lok Sabha in 1989 from Barmer Lok Sabha constituency. He was a leader of Janata Dal. He was a prominent leader of Rajput community and associated himself with pro-sati agitation on Roop Kanwar's death. His son Shri Lokendrasingh Kalvi is active in social work and politics.He is the founder of Shree Rajput Karni Sena.