Vigraharāja I (r. c. 734–759 CE) was an Indian king from the Chahamana dynasty.
He ruled parts of present-day Rajasthan in north-western India.
[1] Vigraharaja succeeded his father Ajayaraja I as the Chahamana ruler.
[2] The Prithviraja Vijaya praises him using conventional eulogies, which indicates that he achieved military successes.
[2] The later Hammira Mahakavya mentions Chandraraja ("Shri Chandra") as the son of Vigraharaja's ancestor Naradeva.