1. Jayabáhu.-King of Ceylon (1114-1116 A.C.). He was a brother of Vijayabáhu I., who made him ádipáda and gave him Rohana (Cv.lix.12). He married his step-sister Sumittá (Cv.lix.43) and was later made uparája (Cv.lx.87). On the death of Vijayabáhu, Jayabáhu became king with the help of the Pándyan faction of the royal family and appointed, "contrary to former custom," Mánábharana as his uparája. The latter, however, seems to have been the virtual king; his attempts to attack Vikkamabáhu, the lawful uparája, ended in disaster, and Vikkamabáhu captured the capital, Pulatthipura, whereupon Jayabáhu retired to Rohana. He lived there as nominal sovereign and died in obscurity (Cv.lxi).
2. Jayabáhu.-A Tamil usurper who, with Mágha, seems to have been in possession of the north of Ceylon and the capital at Pulatthipura for many years, both before and during the reign of Parakkamabáhu II. Cv.lxxxii.87; lxxxiii.15ff.
3. Jayabáhu.-Youngest of the five sons of Parakkamabáhu II. He lived with his father and helped in the administration. Cv.lxxxvii.17; lxxxviii.19.
4. Jayabáhu.-Grandson of Parakkamabáhu VI., whom he is said to have succeeded, but nothing further is known of him except that he was murdered by Bhuvanekabáhu (vi.). Cv.xcii.1.
5. Jayabáhu.-A thera of Ceylon, better known as Devarakkhita or Dhammakitti. He was Sangharája and composed the Nikáyasangraha. P.L.C.242f.