The Naval Infantry Command, also known as the Naval Infantry of the Navy of the Argentine Republic and generally referred to in English as the Argentine marines, are the amphibious warfare branch of the Argentine Navy and one of its four operational commands.

Marines, or naval infantry, are soldiers who specialise at operating in littoral zones, both on land and at sea. Historically, the main tasks undertaken by marines have included raiding ashore in support of naval objectives, and the boarding of vessels during combat or capture of prize ships. Marines also help maintain discipline and order aboard the ship. In most countries, marines are an integral part of that state's navy.