The Gaithersburg High School NJROTC program is a Federal Program sponsored by the United States Navy. This program is an leadership elective course offered to students who attend Gaithersburg, Watkins Mill, Rockville, Richard Montgomery, and Quince Orchard High Schools.  Students learn about the customs and courtesies of the Navy, as well as leadership, citizenship, maritime sciences, and naval history.  Cadets have the opportunity to join competitive teams, earn Student Service Learning (SSL) hours, attend field trips, and volunteer in many community events.  The unit provides cadets with a uniforms, physical fitness gear, textbooks, and other resource materials.  The Senior Naval Science Instructor (SNSI) is Captain Robert Mitton, USN (ret) and the Naval Science Instructor (NSI) is Master Gunnery Sargeant Allender, US Marine Corps (Ret.).

Cadets have the opportunity to earn Student Service Learning (SSL) hours by helping out at events for the school and volunteering in the community. Cadets also perform at important events throughout the year. This year, cadets have done multiple activities and performed at many events.  These include, but are not limited to, home football games, homecoming game/activities, cake cutting ceremonies, field trip to the United States Naval Academy, drill meets, orienteering meets, parades, and many other activities.