Naval Encyclopedia is an online warship museum and naval history resource, active since 1997. It documents ships and naval warfare from antiquity to the present, with its main coverage focused on the industrial era and twentieth century, particularly the First and Second World Wars and the Cold War. Its articles explore individual vessels and ship classes, fleets and navies from around the world, naval aviation, technology, battles, tactics and fortifications.

The collection also reaches beyond military subjects to include civilian vessels and maritime topics such as clippers, ocean liners, merchant fleets, hospital ships and oil platforms. Visitors can browse material organized by historical era, navy and vessel type, and discover recent articles on ships from different countries and periods. The site also offers naval history media, including photographs, blueprints and illustrations, alongside posters, model kits and a naval history online summer school.

Continuously updated, Naval Encyclopedia presents a broad, evolving reference for readers interested in ships, fleets and the history of life and conflict at sea