John Charles Fields, Canadian mathematician, founder of the Fields Medal (died 1932)

John Charles Fields, FRS, FRSC was a Canadian mathematician and the founder of the Fields Medal for outstanding achievement in mathematics.

The Fields Medal is a prize awarded to two, three, or four mathematicians under 40 years of age at the International Congress of the International Mathematical Union (IMU), a meeting that takes place every four years. The name of the award honours the Canadian mathematician John Charles Fields.