Front of house (abbreviated FOH) is primarily a theatrical term, referring to the portion of the building that is open to the public. In theatre and live music venues, it typically refers to the auditorium and foyer, as opposed to the stage and backstage areas. In theatre, the front of house manager is responsible for ticket sales, refreshments, and making sure auditorium is set out properly.
"Front of house" has also come into use in the food service industry, referring to the area where the general public dines. In this context, the kitchen is referred to as "back of house".