Admiral Sir John Charles Dalrymple-Hay, 3rd Baronet, GCB, PC (11 February 1821 – 28 January 1912) was a Royal Navy officer and politician.

Born in Edinburgh, Hay-Dalrymple was the only child of Sir James Dalrymple Hay, 2nd Baronet, by his first wife Elizabeth, daughter of Lieutenant-General Sir John Shaw Heron-Maxwell, 4th Baronet.

[1] During his naval career he was involved in the Sixth Xhosa War in South Africa and the Oriental Crisis in Syria, being present when Beirut and St Jean d'Acre fell.

[1] Following the succession of King Edward VII, Dalrymple-Hay was among several retired admirals advanced to Knight Grand Cross of the Order of the Bath (GCB) in the 1902 Coronation Honours list published on 26 June 1902,[2][3] and received the insignia in an investiture on board the royal yacht Victoria and Albert outside Cowes on 15 August 1902,[4] the day before the fleet review held there to mark the coronation.

Dalrymple-Hay survived her by eleven years and died in January 1912, aged 90.