Tartar
Tartar may refer to:
Places
- Tartar (river), a river in Azerbaijan
 - Tartar, Switzerland, a village in the Grisons
 - Tərtər, capital of Tartar District, Azerbaijan
 - Tartar District, Azerbaijan
 - Tartar Island, South Shetland Islands, Antarctica
 
People and languages
- Tartar, someone from Tartary, the historical central Asian region populated by Manchus, Mongols, Turks, and others
 - Tatars, a Turkic ethnic group native to present-day Russia and Ukraine
 
Chemicals
- Potassium bitartrate, also called cream of tartar
 - Tartaric acid, commonly mixed with sodium bicarbonate and sold as baking powder
 
Food
- Steak tartare, a meat dish made from raw ground (minced) beef or horsemeat
 - Tartar sauce, a condiment primarily composed of mayonnaise and finely chopped capers
 - Cream of tartar, the culinary name for potassium bitartrate, a dry, powdery, acidic byproduct of fermenting grapes into wine
 
Military
- Tartar (1813 privateer), an American privateer schooner during the War of 1812
 - HMS Tartar, the name of several Royal Navy Vessels
 - RIM-24 Tartar, a missile
 - Tartar Guided Missile Fire Control System
 
Transportation
- Tartar, a GWR Iron Duke Class locomotive built 1848
 - Tartar, a GWR 3031 Class locomotive built 1895
 
Other uses
- Tartar (horse), a racehorse
 - Commander Tartar, the antagonist of the Splatoon 2 Octo Expansion
 - Dental tartar or calculus, hardened dental plaque
 - Tartar Sauce, a swear word for SpongeBob SquarePants
 - Wayne State Tartars, now called the Warriors
 - Tartarus, in Greek mythology, a place in the underworld
 - Tartarium, a middle age expensive fabric also known as Cloth of Tars