Greater Beirut (Arabic: بيروت الكبرى) is the urban agglomeration comprising the city of Beirut (Beirut Governorate) and the adjacent municipalities over the Mount Lebanon Governorate.

Greater Beirut geographically stretches south to the Damour River in the Chouf District until it reaches the "Nahr al-Kalb" river in the Keserwan District in the north.

The conurbation spreads south, east, and north of Beirut city.

To the west, the Eastern Mediterranean Sea serves as a natural boundary.

Greater Beirut is equally split between Christians and Muslims: