Ibaraki Prefecture (茨城県 Ibaraki-ken) is a prefecture of Japan, located in the Kantō region on the main island of Honshu. The capital is Mito.
Ibaraki Prefecture is the northeastern part of the Kantō region, stretching between Tochigi Prefecture and the Pacific Ocean and bounded on the north and south by Fukushima Prefecture and Chiba Prefecture. It also has a border on the southwest with Saitama Prefecture. The northernmost part of the prefecture is mountainous, but most of the prefecture is a flat plain with many lakes.