SEAC Ramón "CZ" Colón-López is the Senior Enlisted Advisor to the Chairman of the Joint Chiefs of Staff, the most senior enlisted service member, by position, in the United States Armed Forces, and the principal military advisor to the Chairman on all matters involving joint and combined total force integration, utilization, health of the force, and joint development for enlisted personnel.

SEAC Colón-López enlisted in the United States Air Force in December 1990. He has held assignments in U.S. Air Forces Europe, Air Combat Command, Air Force Special Operations Command, Air Education and Training Command, Pacific Air Forces, Joint Special Operations Command, and Air Forces Central Command. He has deployed numerous times in support of operations Southern Watch, Northern Watch, Enduring Freedom, Iraqi Freedom, New Dawn, Resolute Support, Inherent Resolve, and to several other classified locations. Prior to assuming his current position, he served as the Command Senior Enlisted Leader for United States Africa Command.