Tin foil is a thin metal foil.
Tin foil or tinfoil may also refer to:
a colloquial term for aluminium foil Barbonymus, a genus of fish which are sometimes called tinfoils Tinfoil, a novel by Mildred Cram Tinfoil, original title of Faithless (1932 film), an adaptation of Cram's novel "Tinfoil", an instrumental track on Living Things (Linkin Park album)
See also Tin foil hat