Side altar

File:Kapucijnenkerk.linkerbeuk.jpg

A bye-altar in the Kapucijnenkerk; Ostend, Belgium. Notice the high altar in the background.

A side-altar or bye-altar is an altar that is subordinate to the central or high altar in a church. The term is generally applied to altars situated in bays of the nave, transepts, etc. Side-altars may be recessed in a side-chapel, or simply built against a main aisle wall.

Before the liturgical reforms arising from the Second Vatican Council, separate Masses may be celebrated simultaneously by other priests at side-altars, even as there is an ongoing Mass at the high altar.

See also

• Lady chapel

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