The Beirut River is a river in Lebanon separating the city of Beirut from its eastern suburbs, primarily Bourj Hammoud and Sin el Fil. The river flows mostly east to west from snow drains and springs on the western slopes of Mount Kneisseh and the southern end of Mount Sannine near the towns of Hammana and Falougha, before curving north and emptying at Beirut's northern Mediterranean coast, east of the Port of Beirut. According to popular legend, St. George slew the dragon in a spot near the mouth of the river.

Beirut is the capital and largest city of Lebanon. As of 2014, Greater Beirut has a population of 2.5 million, which makes it the third-largest city in the Levant region and the thirteenth-largest in the Arab world. The city is situated on a peninsula at the midpoint of Lebanon's Mediterranean coast. Beirut has been inhabited for more than 5,000 years, making it one of the oldest cities in the world.