William LaDon Grist (April 8, 1938 – February 23, 2022) was an American politician and jurist.
He received his degree in chemistry from the University of Southern Mississippi and his law degree from the Mississippi College School of Law.
Grist served in the Mississippi House of Representatives from 1976 to 1990.
He then served as chancellor in the Mississippi Chancery Courts until he retired.
Grist died at his son's home in Alexander, Arkansas.