LIF, LiF or Lif may refer to: Music Mr. Lif (Jeffrey Haynes), a rapper "Lif", the last track on Horse the Band's album A Natural Death "Líf", a song by Hildur Vala Einarsdóttir Science Leukemia inhibitory factor, a cytokine that affects cell growth and development Laser-induced fluorescence, a spectroscopic method Low insertion force sockets Lithium fluoride, a chemical compound used for windows, prisms, and lenses from vacuum UV to near IR range Left Iliac fossa, a part of human and primate anatomy Local inertial frame, a concept in general relativity Other uses Liquid Impact Forming, metalworking process Liberal Forum, a former Austrian political party Leirvík ÍF (LÍF Leirvík) a Faroese football club Lif Island, an island of Papua New Guinea Líf and Lífþrasir, characters from Norse mythology See also Liff (disambiguation)