Edmund Peter Giambastiani Jr.[1] (born May 4, 1948) is a retired United States Navy admiral who served as the seventh vice chairman of the Joint Chiefs of Staff from 2005 to 2007.

Giambastiani's other shore and staff assignments include duties as an enlisted program manager at the Navy Recruiting Command Headquarters, Washington, D.C., in the early days of the all volunteer force; Special Assistant to the Deputy Director for Intelligence, Central Intelligence Agency; and, a fellowship with the Chief of Naval Operations' Strategic Studies Group.

On August 12, 2005, Giambastiani was sworn in as the seventh Vice Chairman of the Joint Chiefs of Staff, becoming the third naval officer to hold that position.

He went to the North Africa American Cemetery and Memorial on the outskirts of Tunis to pay his respects to fallen U.S. soldiers who had died there during the Tunisia campaign of World War II.

[citation needed] On October 8, 2009, airplane maker Boeing Co. announced that Giambastiani had been elected to its board of directors, effective immediately.