Big Jack is a 1949 American Western film starring Wallace Beery, Richard Conte and Marjorie Main.

The movie was directed by Richard Thorpe, and the screenplay was written by Gene Fowler and Otto Eis from the novel by Robert Thoeren.

The picture is a comedy-drama, set on the American frontier in the early 1800s, about outlaws who befriend a young doctor in legal trouble for acquiring corpses for anatomical research.

According to MGM records the film earned $759,000 in the US and Canada and $156,000 elsewhere, resulting in a $291,000 loss.

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