SUF may refer to:
- Socialistisk Ungdomsfront (Socialist Youth Front, Denmark)
- Syndikalistiska Ungdomsförbundet (Swedish Anarcho-syndicalist Youth Federation)
- The IATA code for Lamezia Terme Airport in Italy.
- Town of Souf Kingdom of Jordan
- The lexical root of Sufi is variously traced to صُوف, ṣūf "wool"
- Svensk Utlandsregistrerad Filial or Svenskt Utlandsregistrerat Företag, meaning Swedish Foreign Registered Branch/Company.