Sif (disambiguation)

Sif is a Norse goddess and the wife of Thor.

Sif or SIF may also refer to:

Sif

Sif (character), the Norse goddess as portrayed in Marvel Comics
- Sif (Marvel Cinematic Universe), the character's portrayal in the MCU
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

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

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

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

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