ISF

ISF may stand for:

• Ian Somerhalder Foundation
• Istanbul Shopping Fest
• Impôt de Solidarité sur la Fortune, a French wealth tax
• Iraqi Security Forces
• Incremental sheet forming
• Internal Security Forces, of Lebanon
• International Softball Federation
• International School of Florence
• International School Sport Federation
• International Snowboard Federation
• International Spiritualist Federation
• Information Security Forum, an international information security best practices organization
• Information System Framework, a RIA web server and client framework
• Île Sans Fil, a community wireless network based in Montreal, Canada
• Internationale Schule Frankfurt Rhein-Main
• Lexus IS F
• Ink Serialized Format, a vector image file format from Microsoft
• Importer Security Filing
• Institut für Schallforschung, the Acoustics Research Institute of the Austrian Academy of Sciences