Jayasimha was an early Chudasama king known only from the ballads and folklore of Saurashtra region of Gujarat, India.
They say that the real name of this chieftain was Jayasimha but that his seizing on Kanauj obtained for him the title of Gario and his munificence caused him to be known as Dyas.
Jayasimha refused to permit him to enter and retained possession of the place.
Jayasimha afterwards joined the Chaulukya king Bhimdev in his warfare with Prithviraj and is alluded to in the Prithviraj Raso as Chudasama Jayasimha according to the Ras Mala of Alexander Kinloch Forbes.
It is difficult to decide the correct dates of the king as the information about him is derived only from bardic tales and folklore.