Himeji Castle（姫路城）is a hilltop Japanese castle complex located in Himeji in Hyōgo Prefecture that is regarded as the finest surviving example of 17th century Japanese castle architecture.  It comprises a network of 83 buildings with advanced defensive systems from the feudal period. The castle is frequently known as Hakurojō ("White Egret Castle") or Shirasagijō ("White Heron Castle") because of its brilliant white exterior and supposed resemblance to a bird taking flight.

Himeji Castle is the largest and most visited castle in Japan. It was registered in 1993 as one of the first UNESCO World Heritage Sites in Japan. The area within the middle moat of the castle complex is a designated Special Historic Site and five structures of the castle are also designated National Treasures.  Along with Matsumoto Castle and Kumamoto Castle, it is considered one of Japan's three premier castles. In order to preserve the castle buildings, Himeji Castle is currently undergoing restoration work that is expected to continue for several years.