Alexander Barclay (c. 1476–1552) was an English/Scottish poet.
Alexander Barclay may also refer to:
Alexander Barclay (apothecary) (died before 1608) Scottish herbalist Alexander Barclay (frontiersman) (1810–1855), British trader in the American West and partner of Teresita Sandoval Alexander Charles Barclay (1823–1893), English brewer and Liberal politician Alexander Barclay (politician), member of the House of Assembly of Jamaica
See also Alex Barclay (born 1974), Irish crime writer Xander Berkeley (born 1955), American actor