NIF or Nif may refer to:
Localities Nif, former name of the town of Kemalpaşa in western Turkey Mount Nif, near Kemalpaşa, Turkey Nifty Airport, IATA airport code "NIF"
Organizations and other abbreviations National Ignition Facility, a US experimental fusion facility at Lawrence Livermore National Laboratory National Immigration Forum, a pro-immigrant advocacy non-profit organization based in Washington, DC National Islamic Front, a political party of Sudan Nationalist and Integrationist Front of Ituri, Democratic Republic of the Congo Neuroscience Information Framework, a repository of global neuroscience web resources New Israel Fund, a U.S.-based organization that funds social justice initiatives in Israel National Issues Forums, a US network of organizations and individuals who sponsor public forums Número de Identificación Fiscal or Número de Identificação Fiscal, tax identification numbers used in Spain and Portugal, respectively 3D scene format of the Gamebryo/NetImmerse game engine NÍF Nólsoy, a former Faroese football team now known as FF Giza
Norwegian Olympic and Paralympic Committee and Confederation of Sports, the highest governing body for sports in Norway Nordstrand IF, Norwegian multisports club
Biology Nif gene Nif regulon Neuroscience Information Framework, an inventory of web-based neurosciences data, resources, and tools Negative inspiratory force
Computer sciences Natural Language Programming Interchange Format
Rail transportation
New Intercity Fleet, otherwise known as D sets, an intercity train fleet in New South Wales, Australia