HMS Linnet was a 16-gun brig, built in 1814 by the Royal Navy at Ile aux Noix, Canada, as Niagara.

The Americans captured her in 1814 at the Battle of Lake Champlain at Plattsburgh, New York, and took her into service though she never sailed again.

George Downie's squadron, taking part in the Battle of Lake Champlain on 11 September 1814.

Sailing down the bay, Linnet engaged the American brig Eagle, of 18 guns.

Linnet had sustained losses of 10 killed and 15 wounded.