Firework Ait
[Image:River_Thames_from_Windsor_Bridge_-_geograph.org.uk_-_1220338.jpg|thumb|The ait is the small piece of land on the right hand side of this photograph from non-motorised Windsor Bridge]
Firework Ait is an islet in the River Thames in England on the reach above Romney Lock known as the Windsor and Eton reach, Berkshire. It is the smallest island on the Thames with an official map-published name.