A monk of Mandalārāma in Ceylon, in the time of King Vattagāmani (VibhA.448). He was evidently well versed in the Abhidhamma and it is said (DhsA.30) that he once explained the Padesavihāra Sutta so as to include various teachings of the Abhidhamma.
Once, while on his alms-rounds, he saw something which provoked desire in his heart. He immediately returned to his teacher and asked his advice as to how to conquer his disease. The teacher sent him to Mahāsangharakkhita of Malaya, who gave him the asubhakammatthāna. That same night Tissabhūti became an arahant at the foot of a sepanni tree. AA.i.23f.