Third hand

Third hand may refer to:
 * Helping hand (tool), also known as a third hand, a type of jig used in soldering and craftwork
 * Autoblock, also known as a third hand, a rope device used in climbing and caving
 * The Third Hand, a 2007 album by RJD2
 * The Third Hand (film), a 1981 Hong Kong adult film
 * Judgement Day (1988 film), also known as The Third Hand, a 1988 American horror film
 * Third-hand smoke, contamination by tobacco smoke following the extinguishing of a combustible tobacco product
 * Third hand (card player), the third in line to receive cards, bid or play in a card game
 * Third hand, see Glossary of contract bridge terms