Jōshin'etsu-kōgen National Park (上信越高原国立公園, Jōshin'etsu-kōgen Kokuritsu Kōen) is a national park in the Chūbu region of the main island of Honshū, Japan formed around several active and dormant volcanoes.

Jōshin'etsu-kōgen National Park was established in 1949 and significantly expanded in 1956 to include the Myōkō-Togakushi mountainous region.

[3] The latter was separated as Myōkō-Togakushi Renzan National Park on March 27, 2015 with 39.772 ha.

The Jōshin'etsu Kōgen National Park is a popular tourist destination for skiing, mountain climbing, hiking, and onsen hot spring resorts.

The Shiga-Kusatsu-Kogen Ridge Highway traverses this section of the park, connecting the Yamanouchi Hot Springs, including the onsens of Yudanaka, in the north with the resort town of Karuizawa, Nagano Prefecture in the south.