Saint Aldate (died 577) was a bishop of Gloucester, venerated as a saint in the Roman Catholic Church with the feast day of 4 February. Aldate's life is not detailed historically, but he was probably a Briton killed by the Anglo-Saxons at Deorham. He is reported to have roused the countryside to resist pagan invasion forces. But nothing seems to be known of him: it was even suggested that his name was a corruption of "old gate".

Veneration

Aldate is mentioned in the Sarum and other martyrologies; his feast occurs in a Gloucester calendar (14th-century addition); churches were dedicated to him at Gloucester and Oxford, as well as a famous Oxford street: St Aldate's, Oxford and a minor street in Gloucester. There is also a St Aldate's Tavern, a bed-and-breakfast, as a annex to Christ Church, and a room at the Oxford Town Hall. He is also venerated as a saint in the Eastern Orthodox Church.