Komine Castle (Komine-jō) is a castle in the city of Shirakawa, Fukushima, Japan. It may be also called simply by the name of Shirakawa Castle (Shirakawa-jō). In English, its literal meaning could be translated as "Small Peak Castle". Along with the Morioka Castle and the Aizuwakamatsu Castle, it may be considered as one of the three most important castles of the Tōhoku region of Japan.
The construction of the Komine Castle was started in 1340 by Chikatomo Yūki, in a small hill then called Kominegaoka. In 1627, it was under the control of Nagashige Niwa, who transferred 100,000 blocks of stone from the neighbouring Tanagura Castle (in Tanagura, Fukushima) in the year of 1628. This was done to aid in the expansion of the Komine Castle, then renamed Shirakawa Castle. Said renovation was finished four years later, in 1632. During most of the Edo Period, the castle was ruled by the Matsudaira clan.