| Honorific-Prefix: | Most Reverend |
| Guillaume Piguel | |
| Apostolic Vicar of Cochin | |
| Church: | Catholic Church |
| Diocese: | Apostolic Vicararite of Cochin |
| Predecessor: | Arnaud-François Lefèbvre |
| Successor: | Pierre-Joseph-Georges Pigneau de Béhaine |
| Ordination: | December 21, 1748 |
| Consecration: | December 9, 1764 |
| Consecrated By: | Pierre Brigot |
| Birth Date: | December 4, 1722 |
| Birth Place: | La Mézière, France |
| Nationality: | French |
Guillaume Piguel (December 4, 1722 – June 21, 1771) served as the Apostolic Vicar of Cochin (1762–1771).[1] [2]
Guillaume Piguel was born in La Mézière, France and was an ordained priest of the Société des Missions étrangères de Paris on December 21, 1748. On July 29, 1762, Pope Clement XIII appointed him Apostolic Vicar of Cochin and Titular Bishop of Canatha. On December 9, 1764, he was consecrated bishop by Pierre Brigot, Apostolic Vicar of Siam.