The Hellenic Navy is the naval warfare service branch of the Armed Forces of Greece. As of 2025, the Navy operates a wide variety of warships including: 13 frigates, 8 submarines, 13 missile boats, 9 gunboats, 8 patrol boats and others.
A bid for four submarines is ongoing as of 2025 as part of the Achilles' Shield Programme. The potential suppliers and their submarines include: