Ratnasimha

thumb|260px|Chittor Fort was the capital of Mewar and is located in the present-day town of Chittorgarh Ratnasimha (IAST: Ratna-Siṃha, r. c. 1302–03 CE) was a ruler of the Kingdom of Mewar in present-day Rajasthan, India. He belonged to the Rawal branch of the Guhila dynasty, which ruled from the Chitrakuta fort (modern Chittorgarh). The last ruler of this branch, he was defeated by Alauddin Khalji during the Siege of Chittorgarh in 1303 CE.

The Rajasthani legends mention him as the Rajput ruler Rawal Ratan Singh. A fictionalized version of him appears as Ratan Sen in Malik Muhammad Jayasi's Padmavat. According to this poem, Alauddin Khalji attacked Chittorgarh to obtain his beautiful wife Rani Padmini; Alauddin captured the fort after Ratan Sen died in a combat with king Devpal of Kumbhalner; subsequently, Padmini and other women committed Jauhar to protect their honour. The historicity of this legend is disputed.