a former United States Navy admiral who served as the 30th Chief of Naval Operations from September 23, 2011, to September 18, 2015. He previously served as the 36th Vice Chief of Naval Operations from August 13, 2009, to August 22, 2011. Prior to that, he served as Commander, U.S. Fleet Forces Command from September 29, 2007, to July 29, 2009, deputy chief of Naval Operations for Integration of Capabilities and Resources from September 2006 to September 2007, and commander of U.S. Seventh Fleet from August 2004 to September 2006. He retired from the navy after over 40 years of service. In March 2016, the National Bureau of Asian Research announced that Greenert would become the third holder of the John M. Shalikashvili Chair in National Security Studies (Shali Chair) at NBR. In April 2016, Greenert was appointed to the board of directors for BAE Systems for a three-year term.
| Types | Person, Public Official |
| Aliases | Admiral Jonathan Greenert |
| Region | US and Canada |