Jak

Jak may refer to:

  • JAK, Jazakomu Allahu Khayran (a way of thanking in Islam)
  • JAK members bank, a Swedish interest-free bank
  • Janus kinase, an intracellular signaling molecule; component of the JAK-STAT signal system
  • Jak (Jak and Daxter), the main character of the Jak and Daxter video game series
  • Jak (comics), a comic strip in the UK comic book The Dandy
  • Alternative spelling of the male name Jack
  • Ják, a village in Hungary
  • Raymond Jackson ("JAK") (1927–1997), cartoonist of the London Evening Standard
  • Jan Amos Komenský (Comenius), Czech theologian, educator and writer; the last bishop of Unity of the Brethren
  • Janus kinase 1, a protein