The Polish Navy (Polish: Marynarka Wojenna, «War Navy») is a military branch of the Polish Armed Forces responsible for naval operations. The Polish Navy consists of 53 ships and about 12,600 commissioned and enlisted personnel. The traditional ship prefix in the Polish Navy is ORP (Okręt Rzeczypospolitej Polskiej, «Ship of the Republic of Poland»).
Poland's entrance into the North Atlantic Treaty Organization has greatly changed the structure and role of the Polish Navy. Whereas before, most of Naval High Command was concerned with coastal defense and Baltic Sea Operations, the current mindset is for integration with international naval operations. The focus is on expansion of subsurface naval capabilities, and in the creation of a large submarine force. To facilitate these changes the Republic of Poland has undertaken a number of modernization programs aimed at creating a force capable of power projection around the world. This includes a number of foreign acquisitions, including the acquisition of four Kobben-class submarines from Norway, and two Oliver Hazard Perry-class frigates from the United States. The Polish Navy has also one Kilo-class submarine (ORP Orzeł). The Naval air arm has also acquired a number of SH-2G Super Seasprite helicopters. Highly appreciated is a naval commando unit Formoza (since 2007 part of the Wojska Specjalne).
The Polish Navy has taken part in numerous joint force operations. In 1999 the naval base at Gdynia became the home base of all NATO submarine forces in the Baltic, codenamed «Cooperative Poseidon». That same year joint American-Polish submarine training manoeuvres codenamed «Baltic Porpoise» for the first time utilized the port in a multinational military exercise.
The Polish Navy is undergoing a full modernization. Initially planned as a 9 billion zloty project, the budget was reduced to 5 billion zloty in 2012 which caused projects delays or cancellations over the allotted time 2010 – 2018. The latest strategy for the navy considers larger warships as unsuitable for the Baltic Sea, however one Oliver Hazard Perry-class frigate will be upgraded to extend its operation life beyond 2020. 12 new ships worth around 10 billion PLN were to be acquired before 2026. The plan was updated in 2017 for 2013–2022 period to be worth 13 billion zloty and call to acquire 22 new vessels. This include three Coastal Defence Vessel, code name Miecznik with displacement of 2600 tons, three patrol/mine countermeasure vessel, code name Czapla with 1700 tons displacement. Three new submarines are planned with delivery expected in 2024–2025. Three Kormoran 2-class minehunters are planned. Other purchases include six tugboats, two tankers, two rescue ships, one ELINT, one logistical support ship and one Joint Support Ship. However some deliveries are expected up to 2026. Meanwhile, to reduce costs, serving vessels will be upgraded and overhauled to maintain operational status. Concerns have been risen about the Polish Navy, as more vessels are being withdrawn from service without being replaced in the near future. With the increased tension in the area surrounding Poland, plans have been put in place to potentially procure up to three new submarines with cruise missile launch capability. The cruise missiles carried are planned to have an 800 km (500 mi) range.
The Polish Navy has already acquired 36 Swedish RBS15 Mk3 and 50 (50/74) Norwegian Naval Strike Missiles for vessels and coastal defence units. It is planned to reinforce the Navy's helicopter fleet with four to eight ASW/SAR units. The Gawron-class corvettes program was cancelled with the sole surviving unit to be built as a patrol vessel. On 2 July 2015 ORP Ślązak was christened during official launching ceremony, becoming the first new Polish-built Navy ship in 21 years. In June 2013 the Coastal Missile Division (NDR) equipped initially with 12 Naval Strike Missiles and two TRS-15C radars achieved initial readiness.