The 4th Infantry Division (Greek: IV Μεραρχία Πεζικού, IV ΜΠ, romanized: IV Merarchia Pezikou, IV MP) is a formation of the Hellenic Army. Founded in 1912 as an infantrydivision, it continues to exist today as a reserve and training formation, headquartered in Tripoli, Peloponnese.
The division participated in the Asia Minor Campaign, where it was almost destroyed in the Battle of Dumlupınar in August 1922, as it faced the brunt of the Turkish offensive. Reformed in Greece, it fought in the Albanian front during the Greco-Italian War and was disbanded after the German invasion of Greece in April 1941. The division was reformed after the war, and has remained at Tripoli ever since.