Rear Adm. John G. Hannink is a native of Modesto, California. Following graduation from the U.S. Naval Academy in 1985 with a bachelor’s degree in aerospace engineering, Hannink completed pilot training at Naval Air Station Kingsville, Texas. Hannink then entered the Navy’s Law Education Program and graduated from Baylor Law School in 1994. He later earned a Master of Laws in International Law from George Washington University Law School.
Assigned to Sea Control Squadron (VS) 33, he deployed to the Western Pacific and Indian Ocean aboard USS Nimitz (CVN 68). He served as the squadron’s public affairs officer, quality assurance officer and nuclear safety officer.
Hannink has completed several assignments within Naval Legal Service Command (NLSC) and the Office of the Judge Advocate General (OJAG). NLSC assignments include personal representation attorney and prosecutor at Naval Station San Diego and commanding officer of Region Legal Service Office Southeast. OJAG assignments include general litigation attorney and executive assistant to the deputy judge advocate general and the judge advocate general. He also served as assistant judge advocate general (operations and management) and chief of staff, Region Legal Service Offices.
Hannink’s staff and operational experience includes deputy staff judge advocate (SJA) for 5th Fleet, SJA for 2nd Fleet, special assistant to the secretary of the Navy, deputy legal counsel to the chairman of the Joint Chiefs of Staff, special counsel to the chief of naval operations, and SJA for U.S. Pacific Command. Most recently, he served as a fellow on the Chief of Naval Operations Strategic Studies Group, Newport, Rhode Island.
Hannink is the deputy judge advocate general of the Navy (DJAG) and commander, Naval Legal Service Command (CNLSC). As the DJAG, he serves as the deputy Department of Defense representative for ocean policy affairs. As CNLSC, he leads the attorneys, enlisted legalmen and civilian employees of 14 commands that provide prosecution and defense services, legal services to individuals, specialized legal training and legal support to Navy units around the world.
Hannink’s military awards include the Defense Superior Service Medal, the Legion of Merit and the Meritorious Service Medal.
Hannink is a member of the state bar of Texas.