Major Ernest Gambier-Parry OBE (25 October 1853 – 15 April 1936) was a British military officer who participated in an expedition to the Sudan to avenge the grisly death of a renowned general in 1885.

His half-brother was the composer Sir Hubert Parry, Thomas Gambier-Parry's son by his first wife Anna Maria Isabella Clinton.

[9] He was promoted to lieutenant and, on 2 December 1874, he joined the Royal Welch Fusiliers (23rd Regiment of Foot) in that rank.

[15] Gambier-Parry participated as a special service officer in the Suakin Expedition of March 1885 commanded by Major-General Sir Gerald Graham VC, following the Siege of Khartoum, to avenge the murder of General Charles George Gordon in January 1885.

"[20] He was appointed as a captain in the reserve of officers on 28 October 1885, and was subsequently promoted to the honorary rank of major on 7 May 1886 for his gallant conduct.

In addition to Suakin, 1885, Gambier-Parry was the author of Annals of an Eton House with some Notes on the Evans Family,[25][26] Sketches of a Yachting Cruise, Day-dreams, The Pageant of my Day, Murphy: A Message to Dog-lovers, Allegories of the Land, The Spirit of the Old Folk, Life of Reynell Taylor, and Ainslie Gore: A Sketch from Life.

(His younger son Mark similarly attempted to avoid the attention of dealers and instead bequeathed the Gambier-Parry collection intact to the Courtauld Institute of Art.

His inventory documented prominent members of the art world who were friends of his father and viewed the collection.

After his father's death, Gambier-Parry extended invitations to art experts to view the collection at Highnam.

The visitors included Professor Charles John Holmes, director of the National Gallery; Sir Claude Phillips, curator of the Wallace Collection; Roger Eliot Fry; Bernard Berenson; Dr. Raymond van Marle, author of The Development of the Italian Schools of Painting, William George Constable of the National Gallery, and historian Welbore St. Clair Baddeley.

[32][33] Following the death of his mother Ethelinda Lear in 1896, his half-brother Hubert Parry inherited the Highnam Court estate.

[34] Gambier-Parry lived in Goring prior to Hubert Parry's death in 1918, at which time he succeeded him to the estate at Highnam Court.