Isle of Ely County Council was the county council of the Isle of Ely in the east of England.

[3] The Isle of Ely County Council was granted a coat of arms on 1 May 1931.

Previous to the grant the council had been using the arms of Diocese of Ely: Gules, three ducal coronets, two and one or.

In the 1931 grant, silver and blue waves were added to the episcopal arms, to suggest that the county was an "isle".

The crest above the shield was a human hand grasping a trident around which an eel was entwined, referring to the popular derivation of "Ely".