Flag Type:  County Flag
Flag Date:  C12th
Flag Designer:  Traditional
Adoption Route:  Traditional
UK Design Code:  UNKG7423
Aspect Ratio:  3:5
Pantone® Colours:  Red 186, Black, White, Yellow 116
Certification:  Flag Institute Chief Vexillologist, Graham Bartram

The Buckinghamshire Flag is a community flag proclaiming the unique identity of this historic English county.

The traditional flag of Buckinghamshire features a chained swan on a bicolour of red and black. The Swan emblem dates back to Anglo-Saxon times when Buckinghamshire was known for breeding swans for the king.