The Flag of Lebanon (Arabic: علم لبنان‎) is formed of two horizontal red stripes enveloping a horizontal white stripe. The white stripe is to be two times a red one (ratio 1:2:1)—a Spanish fess. The green cedar in the middle touches each of the red stripes and its width is one third of the width of the flag. It was adopted on December 7, 1943. The current flag was first drawn in Deputy Saeb Salam's house in Mousaitbeh by the deputies of the Lebanese parliament.

It is a common mistake to draw the branches of the cedar in brown or black. Nevertheless the mistake is unconstitutional. The cedar must be fully green.