ASF can also refer to:
- Acid Survivors Foundation, a group in Bangladesh dedicated to preventing acid attacks and hardening cultural attitudes against them.
- Alaska Satellite Facility, a data center (DAAC) of the NASA.
- alt.seduction.fast, a Usenet group focused on seduction techniques.
- Australian Softball Federation, the governing body for softball in Australia.
- The American School Foundation, A.C., an international preparatory school in Mexico City.
- Acrylic silicone fluoropolymer, a car wax chemical
- Avocats Sans Frontières, an international non-governmental organization contributing to the creation of fair and equitable societies, in which the law and its institutions serve the most vulnerable groups and individuals.
- American Securitization Forum, a group representing the United States mortgage securitization industry.
- The Swiss Football Association, in French (Association Suisse de Football) and Italian (Associazione Svizzera di Football).
- Anti Spam Filtering, in Slovenia, a dedicated software and hardware protection layers using Anti-spam techniques to fight against Email spam.
- American Steel Foundries
- Agency Service Fee