Shikotsu-Tōya National Park (支笏洞爺国立公園, Shikotsu Tōya Kokuritsu Kōen) is a national park in the western part of the island of Hokkaidō, Japan. Named after the volcanic caldera lakes of Lake Shikotsu and Lake Tōya, it has a total area of 993.02 square kilometers. The popular hot spring resort of Noboribetsu is also within the park.

It can be divided into roughly five areas:

• The Mount Yōtei area
• The area around Lake Tōya, Mount Usu and Shōwa-shinzan (Tōya Caldera and Usu Volcano Geopark)
• The area around the hot springs of Noboribetsu (登別), Orofure Pass (オロフレ峠, Orofure-tōge), and Lake Kuttara (倶多楽湖, Kuttara-ko)
• The area around Lake Shikotsu (支笏湖, Shikotsu-ko), Mount Tarumae (樽前山, Tarumae-zan), and Mount Eniwa (恵庭岳, Eniwa-dake)
• The area around Jōzan-kei (定山渓), Toyohira Gorge (豊平峡, Toyohira-kyō), and Nakayama Pass (中山峠, Nakayama-tōge)

Notable features

At the foot of Mount Tarumae on the north-west side one can find the impressive moss-covered cavern or Koke-no-domon.

• Tōya Usu Geopark (English, Japanese)