Yata no Kagami is a sacred bronze mirror that is part of the Imperial Regalia of Japan.

Bronze mirrors preceded the glass mirrors of today. This type of mirror, sometimes termed a copper mirror, has been found by archaeologists among elite assemblages from various cultures, from Etruscan Italy to Japan. Typically they are round and rather small, in the West with a handle, in East Asia with a knob to hold at the back, often with a loop for a cord, or silk tassel. Some were fitted with small stands, and others had a hinged protective cover. In surviving ancient examples the surface is too corroded to be reflective, but some bronze mirrors are still made.