Percy Gordon Dalyell of the Binns CIE DL (died 15 September 1953) was a British soldier, colonial administrator and officer of arms.

Dalyell was born as Percy Gordon Loch, the son of Lt Col William Loch. On 9 August 1905 he commissioned from the Royal Military College, Sandhurst into the British Indian Army.^[1] While in India he worked in the Indian Political Department and was appointed a Companion of the Order of the Indian Empire. Between 1939 and his death in 1953 he was Unicorn Pursuivant in the Court of the Lord Lyon.^[2] He was admitted to the Royal Company of Archers and held the office of Deputy Lieutenant of West Lothian from 1938.^[3]

On 12 September 1928 he married Eleanor Isabel Dalyell, daughter of Sir James Wilkie-Dalyell of the Binns, 9th Baronet, and assumed the surname of Dalyell by decree of Lord Lyon King of Arms.