Samuel Gray may refer to:

Samuel Gray (Boston Massacre) (1718–1770), rope-maker slain in Boston Samuel Frederick Gray (1766–1828), British botanist, mycologist, and pharmacologist Samuel Gray (Australian politician) (1823–1889), member of the New South Wales Legislative Assembly Samuel Brownlow Gray (1823–1910), barrister in the Bermudas Samuel Joseph Gray (1849–1906), British Army soldier

See also Sam Gray (disambiguation)