A monk, elder brother of the Catunikáyika Thera of Kolitavihára. Abhaya lived in Potaliya-vihára and once, when ill, sent for his brother and asked for a formula of meditation easy to practise. The latter suggested meditation on food, and Dattábhaya became an arahant (AA.i.343). He is described as strong in appetites and dislikes, but intelligent and keen in understanding. MA.ii.527; DhSA.268.