Japanese cockroach Periplaneta japonica (Stoll) was collected at a Japanese common wooden house and in a shrine of Hokkaido Jingu, and Maruyama Park in Sapporo city. In Hokkaido, this species was recorded only from the coastal area of the southern parts and Otaru city up to present. Therefore, these are the new records of this species from the landlocked city in Hokkaido, and the new record of invasion to a highly airtight house of Hokkaido.