Flag of Suffolk, UK. An armorial banner attributed to the canonised King Edmund of East Anglia, killed by vikings in 869. Adopted as the county flag in 2017.

On a field of blue, the flag displays a yellow emblem of a crown and crossed arrows. This is the emblem attributed to St Edmund, king of East Anglia, shot with arrows and decapitated Vikings in 869. A shrine and cult later developed in Bury St Edmunds, and the emblem gradually came to represent the county as a whole.