The Good Shepherd is a 1955 British novel about nautical warfare during World War II, by C. S. Forester. It explores the difficulties of the Battle of the Atlantic, specifically as seen through the eyes of the United States commander of an escort fleet during a 52-hour period: the crews' struggle against the sea, the enemy, and the exhaustion brought on by constant vigilance.

The story follows the journey of Commander George Krause, a career naval officer in the United States Navy, as he leads a convoy of 37 ships across the Atlantic Ocean, from Halifax to Liverpool, in the winter of 1942. As the convoy faces numerous dangers, including German U-boats and harsh weather conditions, Krause must use his experience and leadership skills to protect his ships and crew.

The novel is a gripping tale of war, courage, and sacrifice, and has been praised for its vivid depiction of naval warfare during the Second World War. It is considered one of Forester's finest works. The novel also details the problems of the early radar and ASDIC equipment available, and the poor communications between the fleet and Admiralty using HF Radio and early manual cryptography.