FES
- Chaos;Head
- FE (disambiguation)
- Fat embolism syndrome
- Feline sarcoma oncogene
- Fes (That '70s Show)
- Festus Memorial Airport
- Fez (disambiguation)
- Fez, Morocco
- Flame emission spectroscopy
- Flat Earth Society
- Flywheel energy storage
- Frente de Estudiantes Sindicalistas
- Friedrich Ebert Foundation
- Front electric sustainer
- Fuerzas Especiales
- Fulham Enterprise Studio
- Functional electrical stimulation
- Guinness Foreign Extra Stout
- Iron(II) sulfide
- Kingdom of Fes
- Persona 3 FES
- Yui Sakakibara