Flag of the United Arab Emirates
| Use | National flag and ensign |
|---|---|
| Proportion | 1:2 |
| Adopted | 2 December 1971 |
| Design | A horizontal tricolour of green, white and black with a vertical quarter width red bar at the hoist |
| Designed by | Abdulla Mohammed Al Maainah |
The flag of the United Arab Emirates (علم دولة الإمارات العربية المتحدة) contains the Pan-Arab colors red, green, white, and black. It was designed in 1971 by Abdullah Mohammed Al Maainah, who was 19 years old at that time, and was adopted on 2 December 1971 after winning a nationwide flag design contest. The main theme of the flag's four colors is the sovereignty and unity of the Arab states.
Merchant ships may fly the alternative civil ensign, a red flag with the national flag in the canton. Emirates Airlines uses the UAE flag as part of their livery.
All seven emirates use the federal flag interchangeably as the flag of the emirate.