The Argentine Naval Prefecture is a service of Argentina's Security Ministry charged with protecting the country's rivers and maritime territory. It therefore fulfills the functions of other countries' coast guards, and furthermore acts as a gendarmerie force policing navigable rivers.

The Ministry of Security of Argentina is a ministry of the national executive power that oversees public safety and security. It co-ordinates the country's national security policy and oversees the Federal Police, the Airport Security Police, the Naval Prefecture and the National Gendarmerie, as well as the newly created Federal Council for Interior Security.