A monk, elder brother of the Catunikāyika Thera of Kolitavihāra. Abhaya lived in Potaliya-vihāra 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 Dattābhaya 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.