Mainstay (disambiguation)

Mainstay is a Christian rock band from Minneapolis, USA.

Mainstay may also refer to:


 * mainstay (rope), a cable, line, or rope from the top of the main-mast to the foot of the fore-mast on a sailing vessel, forming part of the vessel's standing rigging
 * Beriev A-50, a Russian AWACS aircraft
 * USS Mainstay (AM-261), a US Navy minesweeper
 * Mainstay Lake in Guyana