美国太平洋海军陆战队（United States Marine Corps Forces, Pacific），隶属于美国太平洋司令部。它是美国海军陆战队中规模最大的部队。总部位于夏威夷瓦胡岛H·M·史密斯军营，它可以调动驻扎在太平洋地区和美国西海岸的海军陆战队。

它由第1远征军（I MEF）和第3远征军（III MEF）组成。

美国太平洋陆战队的长期任务包括包围韩国、日本和美国西海岸以及阿拉斯加，同时也出兵支持了伊拉克战争和持久自由行动。总兵力84,000。

Marine Forces Pacific (MARFORPAC) is the United States Marine Corps service component command of United States Pacific Command. It is the largest field command in the Marine Corps and is headquartered at Camp H. M. Smith in Hawaii.

It is composed of the I Marine Expeditionary Force (I MEF) and the III Marine Expeditionary Force (III MEF). Each MEF comprises a command element (CE), a ground combat element (GCE) (1st and 3rd Marine Divisions), an aviation combat element (ACE) (1st and 3rd Marine Aircraft Wings), and a logistics combat element (LCE) (1st and 3rd Marine Logistics Groups).