A scullery is a room in a house, traditionally used for washing up dishes and laundering clothes, or as an overflow kitchen. Tasks performed in the scullery include cleaning dishes and cooking utensils (or storing them), occasional kitchen work, ironing, boiling water for cooking or bathing, and soaking and washing clothes. Sculleries contain hot and cold sinks, sometimes slop sinks, drain pipes, storage shelves, plate racks, a work table, various coppers for boiling water, tubs, and buckets.

The term "scullery" has fallen into disuse in North America, as laundry takes place in a utility room or laundry room.

The term continues in use in its original sense in Britain and Ireland amongst the middle classes, or as an alternative term for kitchen in some regions of Britain, typically Northern Ireland, North East England and Scotland, or in designer kitchens.

In United States military facilities and most commercial restaurants, a "scullery" refers to the section of a dining facility where pots and pans are scrubbed and rinsed (in an assembly line style). It is usually near the kitchen and the serving line.