Harry Depue Train II (born November 5, 1927) is a retired United States Navy admiral and a Senior Fellow at the Joint Advanced Warfighting School at the Joint Forces Staff College in Norfolk, Virginia.

Train's operational commands included the attack submarine USS Barbel (SS-580); the guided missile destroyer USS Conyngham (DDG-17); Cruiser-Destroyer Flotilla 8; the John F. Kennedy Battle Group; and from August 1976 to September 1978, the United States Sixth Fleet in the Mediterranean Sea.

He served as an aide to the Chairman of the Joint Chiefs of Staff Admiral Thomas H. Moorer.

Train also worked for Science Applications International Corporation (SAIC), the nation's largest employee owned research and engineering company.

[6] He is a member of the Board of Trustees of the Old Dominion University Research Foundation,[2] and was the long-time president of the Future of Hampton Roads, a group of civic leaders who work toward regional solutions in Hampton Roads, Virginia.