Deadliest Sea is a fictional made-for-TV movie that originally aired on the Discovery Channel on July 19, 2009. It is about the crew of the Kodiak, Alaska-based scallop fishing vessel St. Christopher. It was produced by the producers of the popular Discovery Channel series Deadliest Catch. While the film itself is a fictionalized account, according to a title-card at the beginning it is based on a true story.

Discovery's description of the film called it "a thrilling tale of struggle and survival in the fierce open sea."