The Portuguese Navy (Portuguese: Marinha Portuguesa), also known as the Portuguese War Navy (Marinha de Guerra Portuguesa) or as the Portuguese Armada (Armada Portuguesa), is the navy of the Portuguese Armed Forces. Chartered in 1317 by King Dinis of Portugal, it is the oldest continuously serving navy in the world; in 2017, the Portuguese Navy commemorated the 700th anniversary of its official creation.
The navy played a key role in Portuguese maritime exploration during the Age of Discovery in the 15th and 16th centuries. The result of this technical and scientific discoveries led Portugal to develop advanced ships, including the caravel, new and more sophisticated types of carracks for interoceanic travel and the oceanic galleon, and to find the sea route to the East and routes to South America and Northern North America.