The 3d Marine Littoral Regiment is a regiment of the United States Marine Corps that is optimized for littoral maneuver in the Indo-Pacific Theater. Based at Marine Corps Base Hawaii, the regiment falls under the command of the 3rd Marine Division and the III Marine Expeditionary Force. It was known as the 3rd Marine Regiment from 1914 to 2022, when it was renamed as part of the Commandant of the Marine Corps' Force Design 2030 initiative. The 3d MLR has participated in the 2022 and 2023 Balikatan exercises in Northern Luzon, Philippines.

Marine Corps Base Hawaii (MCBH), formerly Marine Corps Air Station Kaneohe Bay and originally Naval Air Station Kaneohe Bay, is a U.S. Marine Corps facility and air station located on the Mokapu Peninsula of windward O'ahu in the City & County of Honolulu. Marine Corps Base Hawaii is home to Marines, Sailors, their family members, and civilian employees. The United States Marine Corps operates a 7,800-foot (2,400 m) runway at the base.