Aristeidis Moraitinis DSO (Greek: Αριστείδης Μωραϊτίνης, 1891–1918) was an officer of the Hellenic Navy and pioneer of naval aviation.

He eventually volunteered to join the newly established Hellenic Naval Air Service which was formed at Moudros, Lemnos.

1087 on 26 February 1915; he had qualified the previous 22 September on a Sopwith seaplane at the Royal Hellenic Naval Air Station, Eleusis, Greece.

It was at this time that he conducted air operations over the Macedonian Front, even bombing an airfield and three enemy trains in single sortie.

When Greece joined the Triple Entente in World War I (1917) Moraitinis was transferred to the northern Aegean, where he served under the command of the British Royal Naval Air Service, piloting Sopwith Camels.

On 20 January 1918, Moraitinis was escorting two British Sopwith Baby on their way to bomb the Ottoman battlecruiser Yavuz Sultan Selim when they were attacked by ten enemy aircraft.

As the war came to a close, Aristeidis Moraitinis became commander of the Hellenic Naval Air Service and, with Greece gaining a role in controlling the Dardanelles and the passage to the Black Sea, he arranged for his squadron to get involved.