The Algerian Naval Force (ANF; Arabic: القوات البحرية الجزائرية, French: Forces Navales Algériennes) is the naval branch of the Algerian military. The naval force operates from multiple bases along the country's nearly 1,440 km (890 mi) coastline, fulfilling its primary role of monitoring and defending Algeria's territorial waters against all foreign military or economic intrusion. Additional missions include coast guard and maritime safety missions as well a projection of marine forces (fusiliers marins). Algerian forces are an important player in the Western Mediterranean. The Algerian navy ranks 15th globally in the world's most important naval forces report of 2023.
As with other Algerian military branches, the naval force was built and structured with assistance from the Soviet Union during the Cold War, but has also relied on other sources for equipment in some areas. Since the end of the Cold War, Russia has remained an important partner, but Algeria has increasingly sought additional sources for equipment as well as building its own shipbuilding capacity.