The Cumberland flag is used to represent the historic county of Cumberland, England.

It is a banner of arms of the coat of arms of the defunct Cumberland County Council.

The arms were originally granted by the College of Arms on 19 September 1950,[1] and their blazon, or description, is per fesse Vert and barry wavy of six Argent and Azure in chief three parnassus flowers Proper.

The flag was registered with the Flag Institute, a charity which promotes vexillology, in December 2012.

[2] It states that the green field and parnassus flowers represent Cumberland's marshy uplands and plains,[1] and that the blue and silver stripes in base represent the coastline, lakes, and fells.