U.S. Coast Guard Historian's Office
2703 Martin Luther King, Jr., Ave, SE
Washington, DC 20593-7031


U.S. Coast Guard Museum
Coast Guard Academy - Waesche Hall
15 Mohegan Ave
New London, CT 06320-8100

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Vice Admiral Thomas G. Allan Jr

Deputy Commandant for Mission Support

U.S. Coast Guard

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Vice Admiral Tom Allan assumed the duties as the Deputy Commandant for Mission Support in July 2024. As Deputy Commandant for Mission Support, Vice Admiral Allan leads the 17,000-person organization that delivers the people and systems that enable the U.S. Coast Guard to efficiently and effectively perform its operational missions; Vice Admiral Allan’s responsibility extends to all facets of mission support including the oversight of the recruitment, development, and retention of human capital, the acquisition of complex surface, aviation, and C4IT systems, the overall lifecycle engineering and logistics required to maintain and support Coast Guard assets, information technology, and security.

Vice Admiral Allan most recently served as the Director of Operations – J3, United States Southern Command (U.S. SOUTHCOM) from June 2022 to June 2024 where he oversaw all operations, activities, and investments within U.S. SOUTHCOM’s vast area of responsibility which encompasses 31 countries and 12 dependencies and areas of special sovereignty. Vice Admiral Allan’s previous Flag assignments also include: Commander, First Coast Guard District, where he oversaw all Coast Guard missions across eight states in the Northeast, including over 2,000 miles of coastline from the U.S.-Canadian border to northern New Jersey and 1300 miles offshore; Assistant Commandant for Resources and Chief Financial Officer for the U.S. Coast Guard (CG-8) where he was responsible for all budgetary, financial and resource management activities relating to the programs and operations of the Coast Guard.

A native of Bowie, Maryland, Vice Admiral Allan earned a Bachelor of Science degree in Management from the U.S. Coast Guard academy. He later earned a Master of Business Administration from the University of Baltimore in Baltimore, Maryland and completed the Massachusetts Institute of Technology Seminar XXI.

Vice Admiral Allan’s military awards include the Defense Superior Service Medal, the Coast Guard Legion of Merit, the Coast Guard Meritorious Service Medal, the Coast Guard Commendation Medal, and the Coast Guard Achievement Medal.