David Barclay

David Barclay may refer to:


 * Col. David Barclay (Quaker) (1610–1686), 1st Laird of Urie and father of Robert Barclay, the Quaker apologist
 * David Barclay of Cheapside (1682–1769), Scottish Quaker merchant, grandson of the 1st Laird of Urie, father of David Barclay of Youngsbury
 * David Barclay of Youngsbury (1729–1809), English Quaker merchant and banker, grandson of Robert Barclay
 * David Barclay (MP) (1784–1861), English Whig politician
 * David Barclay (congressman) (1823–1889), member of the U.S. House of Representatives
 * Sir David Barclay (1934–2021), British businessmen
 * David E. Barclay (born 1948), American historian and author
 * David Barclay (puppeteer) (born 1940), British puppeteer
 * Dave O'Brien (actor) (1912–1969), who used the pseudonym David Barclay for his film writing and directing work