Sif (disambiguation)

Sif is a Norse goddess and the wife of Thor.

Sif or SIF may also refer to:

Sif

 * Sif (comics), the Norse goddess as portrayed in Marvel Comics
 * Sif, the official Swedish name for the Swedish Union of Clerical and Technical Employees in Industry
 * Sif (or se'if in Hebrew), a subsection in the Shulkhan Arukh (Code of Jewish Law)
 * Sif, Yemen
 * Sif Glacier, Northern Greenland
 * Siamou language (ISO 639:sif)
 * 4484 Sif, a main-belt asteroid
 * Sif Mons, a shield volcano in Eistla Regio on Venus
 * Sif, the Great Grey Wolf, a boss character in the video game Dark Souls

Organizations

 * Central European Institute of Philosophy (SIF) (Czech: Středoevropský Institut Filosofie)
 * Italian Physical Society (Italian: Società Italiana di Fisica)
 * Save Indian Family, a men's rights movement in India
 * Science of Identity Foundation, a religious organization based in Hawaii, United States
 * Seychelles Islands Foundation, manages and protects the World Heritage Sites of Aldabra and Vallee de Mai
 * Shropshire Islamic Foundation
 * Singapore International Foundation, a non-profit organisation in Singapore
 * Society for Individual Freedom, a United Kingdom-based association promoting individual freedom
 * Somali Islamic Front, also known as Jabhatul Islamiya
 * Sons of Italy Foundation, a philanthropic subsidiary of the Order Sons of Italy in America

Science and technology

 * Safety instrumented function, a form of industrial process control
 * Schools Interoperability Framework, a data sharing specification (XML data standard and SOA infrastructure standard) for K-12 education institutions in the US, UK and AU
 * Selective Identification Feature, modes used to identify aircraft
 * Small intensely fluorescent cell, interneurons of the sympathetic ganglia
 * Source Input Format (MPEG-1)
 * Standard Interchange Format, a data format for Geographic Data defined in FGDC-STD-001-1998
 * Stress intensity factor, used in fracture mechanics to predict the stress state

Sport clubs

 * SÍF Sandavágur, a Faroese Football club
 * Sandvikens IF, a Swedish football club
 * Silkeborg IF, a Danish football club
 * Stavanger IF, a Norgwegian football and handball club
 * SIF Stadion, the home sports venue of the Stavanger IF team
 * Stocksunds IF, a Swedish sportsclub in Stocksund
 * Strømsgodset IF, a Norwegian football club from Drammen and their professional team Strømsgodset Toppfotball
 * Stattena IF, a Swedish football club in Helsingborg

Other uses

 * Specialized Investment Fund, a type of Investment Fund
 * Staten Island Ferry, operated by the New York City Department of Transportation
 * Love Live! School Idol Festival, School Idol Festival, a mobile game as part of the Love Live! franchise