A valet or varlet is a male servant who serves as personal attendant to his employer. In the Middle Ages and Ancien Régime, valet de chambre was a role for junior courtiers and specialists such as artists in a royal court, but the term "valet" by itself most often refers to a normal servant responsible for the clothes and personal belongings of an employer, and making minor arrangements. In the United States, the term most often refers to a parking valet, and the role is often confused with a butler.

A domestic worker is a person who works within a residence and performs a variety of household services for an individual, from providing cleaning and household maintenance, or cooking, laundry and ironing, or care for children and elderly dependents, and other household errands. The term "'domestic service" applies to the equivalent occupational category. In traditional English contexts, such a person was said to be "in service".