A cell is a small room used by a hermit, monk, nun or anchorite to live and as a devotional space. Cells are often part of larger cenobitic monastic communities such as Catholic, Lutheran, Anglican and Orthodox Christian monasteries, as well as Buddhist vihara,^[1] but may also form stand-alone structures in remote locations. The word cell comes from the Old French celle meaning a monastic cell, itself from the Latin meaning "room",^[2] "store room" or "chamber".^[3]

Usually, a cell is small and contains a minimum of furnishings. It may be an individual living space in a building or a hermit's primitive solitary living space, possibly a cave or hut in a remote location. A small dependent or daughter house of a major monastery, sometimes housing just one or two monks or nuns, may also be termed a cell.

The first cells were in the Nitrian Desert in Egypt following the ministry of Paul of Thebes,^[4] Serapion, and Anthony the Great.^[5] in the mid 3rd century.

In some orders, such as the Trappists, the monks or nuns do not have cells but sleep in a large room called a dormitory. In eremitic orders like the Carthusians, the room called cell usually has the size and look of a small house with a separate garden.

In Buddhism, a vihara was a living arrangement similar to a Christian monastery. The term "kuti" is also used.^[6]

• Kathisma
• Skete
• Poustinia in Orthodox Christianity
• Therapeutae in Judaism
• Lavra