Gallery may refer to:

• An art museum (art gallery)
• A retail art shop (also often known as an art gallery)
• An exhibition room in a museum
• Long gallery, an element in architecture: a long hallway or long, narrow room, frequently decorated with sculptures and frescoes
• A narrow balcony, usually including a railing, inside or outside of a building
• A minstrels' gallery, a balcony used by performing musicians
• An observation deck, usually on the upper floors of a building, used to afford visitors a long-distance view
• Gallery, in a theatre or concert hall, one or more raised seating platforms towards the rear of the auditorium – see Theater (structure)
• In UK television production, gallery is used as a substitute for production control room
• An audience or group of spectators
• A peanut gallery, an audience that heckles performers
• In mining, a horizontal passage in an underground mine
• Gallery Project, an open source project enabling management and publication of digital photographs and other media through a web server
• An oil gallery, a lubricating oil passage within an internal combustion engine