Prior

The term prior may refer to:
 * Prior (ecclesiastical), the head of a priory (monastery)
 * Prior convictions, the life history and previous convictions of a suspect or defendant in a criminal case
 * Prior probability, in Bayesian statistics
 * Prior knowledge for pattern recognition
 * Saint Prior (4th century), an Egyptian hermit and disciple of Anthony the Great
 * Prior (surname)
 * Prior (Stargate), a fictional race in the television series Stargate
 * Prior (brand), a Norwegian brand of eggs and white meat
 * Prior, Missouri, a community in the United States
 * Prior Norge, a defunct Norwegian egg and white meat processing cooperative