KCG

KCG may refer to:


 * KCG Holdings, an American market-making and electronic trading firm
 * Knight Capital Group, predecessor firm to KCG Holdings traded as KCG
 * Republic of Korea Coast Guard, the coast guard of South Korea
 * Kyoto Computer Gakuin, Japan's first private computer educational institution
 * Chignik Fisheries Airport, with IATA code KCG
 * Kaohsiung City Government, government of Kaohsiung City
 * The ISO 693-3 code for the Tyap language