Tack

Tack may refer to:

Given name or nickname

 * Tacks Latimer (1875–1936), American baseball catcher
 * Tacks Neuer (1877–1966), American baseball pitcher
 * Tack Wilson (born 1955), American baseball outfielder
 * Wong Tack (born 1959), Malaysian politician
 * Irwin "Tack" Kuntz (fl. 1982–present), American pharmaceutical chemist

Surname

 * François Tack (c. 1650–1686), Dutch East India Company officer
 * Augustus Vincent Tack (1870–1949), American painter
 * Anita Tack (born 1951), German politician of the Left Party
 * Erik Tack (born 1958), Belgian politician
 * Kerstin Tack (born 1968), German politician of the Social Democratic Party

Implements, and creative or constructive tasks and materials

 * Tack (sewing) (also baste or pin), quick, temporary stitching intended to be removed
 * Blu Tack, a reusable putty-like pressure-sensitive adhesive used for attaching paper items to walls
 * Horse tack, equipment used to allow riding or driving of horses and some other riding animals
 * Thumbtack or drawing pin, a short nail or pin easily placed and removed by hand
 * Shoe tack, a type of cut nail, used in upholstery, shoe making and saddle manufacture
 * Tack weld, a specific short and often temporary type of weld
 * Upholstery tack or furniture tack, a type of short nail more robust and resistant than the drawing pin.

Sailing

 * A tack as a part of the tacking maneuver; in which a sailing boat turns its bow through the wind
 * Tack (sailing), the lower corner of a sail's leading edge
 * Tack (square sail), a type of rigging unique to square sails

Other uses

 * Hardtack, a hard cracker or biscuit used for food on sea voyages and by soldiers during the American Civil War.
 * Scottish lease, as held by a tacksman
 * Tack, another name for stickiness in chemistry
 * The Tack, a parliamentary maneuver supported by Tackers in 1704
 * The grand tack hypothesis on the origin of the structure of the Solar System
 * TACK, a proposed archaeal supergroup, presumably a sister taxon of hypothetical Asgard taxon within the proteoarchaeota kingdom
 * TACK, a proposed network security standard co-created by Moxie Marlinspike
 * Any of the four symbols
 * right tack $$\vdash$$
 * down tack $$\top$$
 * up tack $$\bot$$
 * left tack $$\dashv$$