Hiroo (広尾町, Hiroo-chō) is a town located in Tokachi Subprefecture, Hokkaido, Japan.

Hiroo is recognized as the only place in Japan to be designated as a "Santa-Land" from the municipal government of Oslo, Norway.

[1] Although cold for its latitude and coastal position, the humid continental climate (Köppen Dfb) of Hiroo is moderated by East Asian standards.

Summers are cooled by the ocean and cloudy weather, whereas the influence of the Siberian landmass drops temperatures in winter.

Due to the ice-free nature of the ocean, Hiroo stays narrowly above freezing during days, whereas nights regularly drop beneath −10 °C (14 °F).