Shiki (磯城郡, Shiki-gun) is a district located in Nara Prefecture, Japan.
As of 2003, the district has an estimated population of 50,009 and a density of 1,607.49 persons per km2. The total area is 31.11 km2.
In ancient times, Sakurai City was also located in this area, and the palace of the ancient emperor was located there.