Anthony Belasyse, also Bellasis, Bellows and Bellowsesse (died 1552) was an English churchman and jurist, archdeacon of Colchester from 1543.
On 4 May 1533 he obtained the rectory of Whickham, co. Durham, being collated to it by Bishop Cuthbert Tunstal, who on 7 June following ordained him priest.
His name is subscribed to the decree of convocation, 9 July 1540, declaring the marriage of Henry VIII with Anne of Cleves to have been invalid.
Belasyse became master of Sherburn Hospital, co. Durham, in or about 1545, in which year Henry VIII granted to him, William Belasyse, and Margaret Simpson, the site of Newburgh Priory in Yorkshire, with the demesne, lands, and other hereditaments; also certain manors in Westmorland which had belonged to the dissolved Byland Abbey in Yorkshire.
In January 1552 his name was inserted in a commission by which certain judges and civilians were authorised to assist Bishop Thomas Goodrich of Ely, the lord keeper, in hearing matters of chancery..