FEI
- Battle of Fei (disambiguation)
- Centro Universitário da FEI
- FEI Company
- FI (disambiguation)
- Falange Española Independiente
- Federal Executive Institute
- Fei (letter)
- Fei (singer)
- Fei (surname)
- Fei County
- Fie (disambiguation)
- Financial Executives International
- International Federation for Equestrian Sports
- Italian Esperanto Federation
- Special Independent Prosecutor