Greek Maritime Museum in Piraeus is the largest Maritime Museum, Greece. The Museum exposition tells about the history of creation and development of the Greek Navy from prehistoric times to the present day. The Museum was opened in 1949, but the idea of its creation was announced naval captain Ohiocom in 1867. In fact, its collection and laid the basis of modern Maritime Museum.

Today the Museum features more than 2,000 exhibits, the oldest of which date back to the 8th Millennium BC. the Exposition is divided into nine halls, in chronological order, gives an opportunity to trace the history of Maritime Affairs in Greece. The Museum presents models of ancient and modern ships of various sizes, naval guns and other weapons, navigation equipment, instruments, flags, medals, Navy Blues, etc. is Available at the Maritime Museum and art gallery, which exhibits works of famous Greek artists of the 19th and 20th centuries. Great attention is paid to the period of the Greek war of independence. A special place in the exhibition is a fragment of the wall that was built around Piraeus when Themistocles in the 5th century BC

The Museum has unique specialized library, which contains more than 10,000 volumes on marine issues. There are also extensive archival materials (including photo and video documentation) and about 200 maps from the 16th to 20th century. The library is open to visitors.

Greek Maritime Museum is a member of the International Congress of Maritime Museums and actively participates in national and international congresses and exhibitions.