Shiraoi is a town situated in the Iburi District of Hokkaido, Japan. Established in 1867 by the feudal lords of Sendai, the municipality serves as a rural settlement within the northern island's landscape.
The geography of the town is characterized by extensive forested areas. A portion of its territory is located within the boundaries of the Shikotsu-Tōya National Park. As of September 2016, the population of Shiraoi was recorded at 17,759 residents.