SK

SK may refer to:

People

 * SK (actor) or Sivakarthikeyan, Indian actor
 * Salman Khan or SK, Indian actor
 * Shahram Kashani (SK), an Iranian-American singer
 * Shakib Khan, Bangladeshi film actor, known by the initialism SK
 * Søren Kierkegaard, Danish philosopher and theologian

Businesses and organizations

 * SK Foods, an American agribusiness company
 * SK Hand Tools, an American tool manufacturer
 * Sangguniang Kabataan, Philippines youth councils
 * SK Group, South Korean conglomerate
 * Scandinavian Airlines (IATA code SK)
 * Silicon Knights, a Canadian video game developer

Slovakia

 * Slovakia (ISO country code)
 * ISO 3166-2:SK, codes for the regions of Slovakia
 * .sk, the internet country code top-level domain for Slovakia
 * Slovak koruna, a former currency of Slovakia
 * Slovak language (ISO 639-1 language code "sk")

Other

 * sk. sokak, Turkish postal abbreviation
 * South Korea, an Asian country
 * Saskatchewan, a Canadian province by postal abbreviation
 * Sikkim, a state in northeastern India (ISO 3166-2 code)
 * Kingdom of Sikkim, a former monarchy in South Asia (ISO 3166-1 alpha-2 code: SK, now deprecated), an Indian protectorate merged with it as a state in 1975
 * Svidník, Slovakia, vehicle plates
 * Sisak, vehicle plate for city in Croatia
 * South Kingstown, Rhode Island, a United States town

Science and technology

 * sk (unit) (Skot), an old and deprecated unit of measurement for dark luminance
 * SK (people mover), a vehicle
 * SK calculus, an alternate form of SKI combinator calculus
 * SK radar, an American air-search radar used during World War II
 * Silent key, an amateur radio operator who has died
 * "Stop keying", a prosign used in Morse code
 * Super-Kamiokande, a Japanese neutrino detector

Biology

 * SK channel, small conductance calcium-activated potassium channels, a family of ion channels

Medicine

 * Solar keratosis or senile keratosis
 * Streptokinase, a bacterial enzyme used in the treatment of blood clots

Sport

 * SK Gaming, an electronic sports team

Other uses

 * Regulation S-K, regarding financial statements in the United States
 * Sekolah Kebangsaan, a type of school in Malaysia
 * Storekeeper, a naval rating in the United States Navy
 * Senran Kagura (SK), video game series