BTK

BTK, Btk, etc. may refer to:

Biology and medicine

 * Bacillus thuringiensis kurstaki (Btk), a soil-dwelling bacterium also used as an insecticide
 * Bruton's tyrosine kinase, a protein
 * Btk-type zinc finger or Btk motif (BM), a zinc-binding motif present in some eukaryotic signalling proteins

Medicine


 * BTK (below-the-knee amputation), amputation of the lower limb between the knee joint and the ankle joint

Music

 * "BTK", a song by American band Exodus on their 2014 album Blood In, Blood Out
 * "B.T.K. (Dennis Rader)", a song by Japanese band Church of Misery on their 2013 album "Thy Kingdom Scum"
 * "Bind Torture Kill", a song by American band Suffocation on their 2006 self-titled album
 * Bind, Torture, Kill, a 2006 album by Belgian band Suicide Commando
 * Birth Through Knowledge, a Canadian hip-hop/rock band

Telecommunications

 * Bulgarian Telecommunications Company, (БТК in Cyrillic)
 * Information and Communication Technologies Authority in Turkey, (abbreviated as BTK in Turkish)

Transportation

 * Baku–Tbilisi–Kars railway connecting Azerbaijan, Georgia and Turkey
 * ICAO airline code for Indonesian airline Batik Air
 * IATA airport code for Bratsk Airport, Russia

Other uses

 * BTK, the ISO 639-2 and ISO 639-5 codes for Batak languages
 * Dennis Rader (born 1945), American serial killer known as "BTK"
 * Kaiser-Fleetwings XBTK, a US Navy dive and torpedo bomber
 * Pillars of Truth (Boutokaan Te Koaua), a political party in Kiribati