HMS Ibis, pennant number U99, was a sloop of the Royal Navy, named after the Ibis.
She was built by Furness Shipbuilding Co. Ltd., Haverton Hill-on-Tees, Co. Durham, was laid down on 22 September 1939, launched on 28 November 1940, and completed 30 August 1941. She was adopted by the civil community of Stoke Newington in London as part of the Warship Week savings campaign in 1942.
Ibis was sunk by an airborne torpedo from an Italian aircraft in the Western Mediterranean, north of Algiers, French Algeria, on 10 November 1942.
The Scottish comedian Rikki Fulton was a member of her crew.