Shelf life, the length of time that perishable items are considered suitable for sale or consumption

Continental shelf, the extended perimeter of a continent, usually covered by shallow seas

A shelf is a detail of furniture for storing items. It may also refer to:

Ice shelf, a thick platform of ice floating on the ocean surface

Sulphur shelf, an edible mushroom

Shelf (computing), a user interface feature in the NeXTSTEP operating system

Shelf cloud, a type of cloud associated with a thunderstorm gust front or cold front

Shelf registration, a registration arrangement for the sale of securities

Shelf, West Yorkshire, a village in England

Off the shelf