Admiral Michael Glenn "Mike" Mullen, USN (born October 4, 1946), is the 17th and current Chairman of the Joint Chiefs of Staff (CJCS). Mullen previously served as the Navy's 28th Chief of Naval Operations from July 22, 2005 to September 29, 2007. His other four-star assignments include being the Commander, U.S. Naval Forces Europe and Commander, Allied Joint Force Command Naples from October 2004 to May 2005, and as the 32nd Vice Chief of Naval Operations from August 2003 to August 2004. As the CJCS, Mullen is the highest ranking officer in the United States armed forces. Admiral Mullen assumed his current assignment on October 1, 2007.

Born in Los Angeles, California, graduate of Blessed Sacrament Catholic School, a graduate of Notre Dame High School (Sherman Oaks) in 1964, and also a 1968 graduate of the United States Naval Academy, Mullen has served in a wide range of assignments at sea and ashore, in Allied, Joint and Navy positions, overseas and in both the Atlantic and the Pacific Fleets.

As a junior officer, he served in various leadership positions aboard USS Collett (DD-730), USS Blandy (DD-943), USS Fox (CG-33) and USS Sterrett (CG-31). He has commanded three ships: the gasoline tanker USS Noxubee (AOG-56), the guided missile destroyer USS Goldsborough (DDG-20), and the guided missile cruiser USS Yorktown (CG-48); and has also commanded Cruiser-Destroyer Group Two and the George Washington Battle Group. Mullen’s last command at sea was as Commander, U.S. Second Fleet/Commander, NATO Striking Fleet Atlantic (COMSTRIKFLTLANT).