FH

FH, Fh, or fh can mean:
* Federation of the Swiss Watch Industry FH
* Friendly Hostility
* Familial hypercholesterolemia
* Fire hydrant
* "The Flat Hat", a student newspaper at the College of William & Mary
* Foghat
* Freehold (Tenure)
* French horn
* Full House
* Funeral home
* Future history
* FH Hafnarfjördur, Icelandic football club
* Field Hockey
* the IATA code for Futura International Airways
* German: Fachhochschule, college of higher education
* The Formula of Humanity, the second formulation of the Categorical imperative presented by Immanuel Kant in "Groundwork of the Metaphysic of Morals".
* The digraph fh
* Freddie Highmore, actor best known for his roles in Charlie and the Chocolate Factory and The Spiderwick Chronicles