| Walter Barclay | |
| Birth Date: | 22 August 1899 |
| Death Place: | Tunisia |
| Birth Name: | Walter Patrick Barclay |
| Allegiance: | United Kingdom |
| Branch: | British Army |
| Rank: | Lieutenant colonel |
| Servicenumber: | 183 |
| Unit: | Black Watch, 6th Battalion |
| Battles: | World War II |
Lt. Col. Walter Patrick Barclay (22 August 1899 – 21 May 1943) was a British soldier.
Barclay was the son of Theodore Charles Barclay and Elizabeth Mary Barclay (née Frazer).[1] He married Daphne Binny in London in 1937.[2]
Barclay was assistant military attaché in Rome in 1938, where his son Peter (who later became leader of Clan Barclay) was born.[3]
During World War II, Barclay served in the Black Watch, reaching the rank of lieutenant colonel.[4] He died in the Tunisian campaign in May 1943.[5]