Marine Corps Defense Services Organization


Marine Corps Defense Services Organization

"Marines Defending Marines"

Chief Defense Counsel of the Marine Corps
 Chief Defense Counsel of the Marine Corps


Colonel William N. Pigott, Jr.


Colonel William N. Pigott, Jr. was born in Chicago, Illinois and is a 1990 graduate of Lewis University.  Upon completion of The Basic School and Logistics School in 1991, Colonel Pigott reported to 1st Battalion, 6th Marine Regiment, 2d Marine Division in Camp Lejeune, North Carolina and was assigned as the battalion Logistics Officer.  While in this billet, he deployed with the 22d Marine Expeditionary Unit in support of Operation PROVIDE PROMISE.


In 1994, he was assigned to Marine Corps Recruiting Station Chicago, 9th Marine Corps District for duties as the Officer Selection Officer.  In 1996, Colonel Pigott was selected for the Funded Law Education Program and received his Juris Doctor Degree from The John Marshall Law School in 1999.  He was designated as a judge advocate and assigned to 1st Force Service Support Group, I Marine Expeditionary Force.  His assigned duties included: Defense Counsel, Senior Defense Counsel, Trial Counsel, Senior Trial Counsel and Officer-in-Charge of Legal Team Delta – one of the two trial teams responsible for prosecuting courts-martial for commands at Camp Pendleton, California.


In 2002, Colonel Pigott reported to I Marine Expeditionary Force for duties as the SJA, 13th Marine Expeditionary Unit and completed three deployments in support of Operation IRAQI FREEDOM. In 2006, he was assigned to MCAS Yuma, Arizona for duties as the SJA.  In 2007, Colonel Pigott assumed command of Region 2 (Near East and South Asia), Marine Corps Embassy Security Group in Abu Dhabi, United Arab Emirates.  Upon completion of his command tour, Colonel Pigott attended the U.S. Army War College at Carlisle Barracks, Pennsylvania and received a Master of Science Degree in National Security and Strategic Studies. 


In 2010, he returned to I Marine Expeditionary Force for duties as the SJA, 1st Marine Logistics Group and deployed immediately to Helmand Province, Afghanistan in support of Operation ENDURING FREEDOM.  Colonel Pigott served as the SJA of U.S. Marine Corps Forces, Pacific from 2012 to 2015.


In 2015, Colonel Pigott reported into Headquarters Marine Corps.  After a successful tour as the Deputy Director of the Marine Corps Judge Advocate Division in 2018, he assumed his post as Chief Defense Counsel of the Marine Corps.


He is married to the former Winnie Marie Latronica and they have one son, William Michael.


Colonel William N. Pigott, Jr.

Contact Information
Telephone:  (703) 604-0728
Fax: (703) 604-5939

Mailing Address:

Office of the Chief Defense Counsel of the Marine Corps
755 S. Courthouse Road, Building 2, Suite 1000
Arlington, VA 22204-2482

Office Location