Augustine Webster was a Carthusian monk and presbyter who lived during the 15th and 16th centuries. Educated at Cambridge University, he eventually served as the prior of the house of Our Lady of Melwood in Lincolnshire. During the English Reformation, he and several other religious leaders sought to demonstrate their loyalty to the crown while maintaining their religious convictions. His refusal to accept the royal supremacy led to his arrest and eventual execution in Tyburn in 1535.