George Haydock (born 1556; executed at Tyburn, 12 February 1584) was an English Roman Catholic priest.

In the five years since they'd last met, Hawkinson, a former Catholic, had apostatised and having then encountered Haydock in London, informed the priest hunters Norton and Sledd.

[3] Haydock spent a year and three months in confinement in the Tower of London, suffering from a malarial fever he first contracted in the early summer of 1581 when visiting the seven churches of Rome.

During the first period of his captivity he was accustomed to decorating his cell with the name and arms of the Pope scratched or drawn in charcoal on the door or walls, and through his career, he remained faithful to the spiritual authority of the Papacy.

He frankly confessed, with reluctance, that he was eventually obliged to declare his treason in claiming that the queen was a heretic, and so seal his fate.

[2] On 5 February 1584, he was indicted with James Fenn, a Somersetshire man, formerly fellow of Corpus Christi College, Oxford, William Deane who had been ordained priest the same day as himself, and six other priests, for having conspired against the queen at Rheims, 23 September 1581, agreeing to come to England, 1 October, and setting out for England, 1 November.

Haydock had for a long time shown a great devotion to St Dorothy, and was accustomed to committing himself and his actions to her daily protection.

[6] He was obliged to stay in a village while the blacksmith replaced a shoe on his horse, and a passerby denounced him as the priest who had preached in the barn.

[9] In February 1583, while riding from Winchester to London, he happened on Hounslow Heath a magistrate from Dorset who recognised him.

[11] Early on Wednesday the 12th the five priests were drawn to Tyburn on hurdles; Haydock, being probably the youngest and certainly the weakest in health, was the first to suffer.