Wikipedia
CYF
CYF can refer to:
- Call You Free, a free webcalling protocol project developing
- Chow Yun-Fat, one of the most famous actors in Asia
- Cyf., a suffix for a private company limited by shares in Wales, UK
- Chefornak Airport (IATA: CYF), an airport in Chefornak, Alaska
- Child, Youth and Family, a New Zealand social agency
- Ciencia ficción y fantasía (as CYF or CyF), Spanish for " science fiction and fantasy" as a supergenre designation