Four mirrors

The term four mirrors, or "the Four Mirrors," may refer to:


 * Mirror armour, of Mughal and Mongol "Four Mirrors" ("char-aina") type.
 * Shikyō (Japanese: 四鏡) "Four Mirrors"; four Japanese history books of the Muromachi Period
 * Sijing (Chinese: 四鏡) "Four Lenses"; article in the Huashu with the earliest known reference to the basic types of simple lenses