Guillan may refer to:
Guillan, Burkina Faso, a village in Cassou Department, Ziro Province, Centre-Ouest, Burkina Faso Guillán River, a river in Cuenca Canton, Azuay Province, Ecuador
Grapes Gouais blanc, a white French grape variety also known as Guillan Malbec, a red wine grape variety also known as Guillan Muscadelle, another white French wine grape that is also known as Guillan
See also Gilan (disambiguation) Gillan (disambiguation) Gilliam (disambiguation) Guillain (disambiguation)