FHO may refer to:
- Foundation House Officer,a grade of medical practitioner in the United Kingdom
- Femoral head ostectomy, a surgical procedure
- Abteilung Fremde Heere Ost (" Foreign Armies East"), part of Oberkommando des Heeres in Nazi Germany
- Fachhochschule Ostschweiz, a College in St. Gallen SG, Switzerland.