Lady Iris Victoria Beatrice Grace Kemp (née Mountbatten, formerly O'Malley, later Bryan; 13 January 1920 – 1 September 1982) was an English actress and model, and a member of the Battenberg/Mountbatten family.

She was also a niece of Queen Victoria Eugenie of Spain, making her a first cousin of Infante Juan, Count of Barcelona, father of Juan Carlos I and grandfather of current King Felipe VI of Spain, as well as Infante Jaime, Duke of Segovia, the Legitimist claimant to the French throne.

[1] Her mother, the Marchioness of Carisbrooke GBE (1938), DJStJ, Order of Queen Maria Luisa, was born Lady Irene Frances Adza Denison (4 July 1890 – 16 July 1956) the only daughter of William Francis Henry Denison, 2nd Earl of Londesborough and Lady Grace Adelaide Fane (3 October 1860 – 13 June 1933), a daughter of Francis William Henry Fane, 12th Earl of Westmorland.

He and his wife had one child, Iris's only maternal first cousin, Lady Zinnia Rosemary Denison (25 November 1937 – 13 July 1997) a keen equestrian and Master of the Whaddon Chase Hunt 1982–84.

On 4 September 1935, at St. Oswald's Church, Blankney, Lincolnshire, she was a bridesmaid at the wedding of her uncle Lord Londesborough to Marigold Rosemary Joyce Lubbock (15 May 1903 – 15 May 1976).

On 12 May 1937 at their coronation, Iris was one of the six train bearers to Queen Elizabeth, wife and consort of her second cousin King George VI.