Alexandros Merentitis (Greek: Αλέξανδρος Μερεντίτης, c. 1880–1964) was a Hellenic Army officer who rose to the rank of Major General.

He participated in all Greek wars of the early 20th century, served as effective Chief of the Hellenic Army General Staff in 1928–1929, General Secretary of the newly established Aviation Ministry in 1930–1934, and briefly as General-Governor of Northern Greece and Minister of Military Affairs in 1945.

While serving as a secretary in the Greek consulate at Monastir, he was arrested by the Ottoman authorities and spent a time in prison.

In the same year, he was promoted to lieutenant, and participated in both Balkan Wars of 1912–1913 as a battery commander, fighting in both Epirus and Macedonia.

After the end of the Allied campaign, he was transferred to Anatolia, where Greece was engaged in a war with the Turkish Nationalist forces of Mustafa Kemal.