Mikasa (三笠市, Mikasa-shi?) is a city located in Sorachi, Hokkaidō, Japan. It is one of the birthplaces of the mining and railroad industries in Hokkaidō, and the Hokkai Bon song was invented there. Though in the past it flourished due to its natural abundance of coal, the mines have largely closed down and this has caused the population of the city to fall rapidly.