Flag of Devon
 | |
| Saint Petroc's Flag | |
| Use | Civil flag  |
|---|---|
| Proportion | 25:43 |
| Adopted | October 2006 (by county council) |
| Design | A centred white cross with black edging on green background. (Vert, a cross argent) |
| Designed by | Ryan Sealey |
The Flag of Devon (also known as Saint Petroc's Flag) is the flag of the ceremonial county of Devon, which consists of a white centered cross with black edging over a green field. It is notable for its creation through two web-based polls, and is an important symbol of Devon's regional identity.
It is dedicated to Saint Petroc, a local saint who ministered to the Celtic Britons of Dumnonia in the 5th and 6th centuries. Numerous churches and sites throughout Devon are dedicated to him.