Hal B. Wallis, C.B.E. (September 14, 1899 – October 5, 1986) was an Academy Award-winning American motion picture producer.

Born as Harold Brent Wallis in Chicago, his family moved in 1922 to Los Angeles, California, where he found work as part of the publicity department at Warner Bros. in 1923.

Within a few years, Wallis became involved in the production end of the business and would eventually become head of production at Warners. In a career that spanned more than fifty years, he was involved with the production of more than 400 feature-length movies.