Cos, COS, CoS, "coS" or Cos. may refer to:
Costco Wholesale Corporation is an American membership-only warehouse club that provides a wide selection of merchandise.
Cosmetics, also known as make-up, are substances or products used to enhance the appearance or fragrance of the body.
Cossacks (Russian: казаки́, kaza'ki, Ukrainian: козаки́, koza'ky) are a group of predominantly East Slavic-speaking people who became known as members of democratic, self-governing, semi-military communities, predominantly located in Ukraine and in Russia.
The cosmic microwave background (CMB) is the thermal radiation left over from the time of recombination in Big Bang cosmology.
Cosmic rays are high-energy radiation, mainly originating outside the Solar System. Upon impact with the Earth's atmosphere, cosmic rays can produce showers of secondary particles that sometimes reach the surface.
The Italian cruise ship Costa Concordia capsized and sank after striking an underwater rock obstruction off Isola del Giglio, Tuscany, on 13 January 2012, with the loss of 33 lives.
In English civil litigation, costs are the lawyers' fees and disbursements of the parties.
Costa Rica (/ˌkɒstə ˈriːkə/; Spanish: [ˈkosta ˈrika]; literally meaning "Rich Coast"), officially the Republic of Costa Rica (Spanish: República de Costa Rica), is a country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west, the Caribbean Sea to the east, and Ecuador to the south of Cocos Island.
Cosplay (コスプレ, kosupure), a contraction of the words costume play, is a performance art in which participants called cosplayers wear costumes and fashion accessories to represent a specific character.