Akaigawa (赤井川村, Akaigawa-mura) is a village located in Shiribeshi, Hokkaido, Japan.

As of October 2020, the village has an estimated population of 1,165. The total area is 280.11 km.

The name derives from Ainu word "hure-pet", meaning "red river".

• 1899: Akaigawa Village split off from Ōe Village (now Niki Town).
• 1906: Akaigawa became a Second Class Village.
• 1991: Kiroro Resort opened.

The center of Akaigawa is in the Akaigawa Caldera and surrounded by mountains on every side.

Kiroro Resort is on the eastern side of the village.

• Mountains: Mount Yoichi, Mount Ponkuto
• Rivers: Yoichi River, Shiroigawa River, Akaigawa River

• Kutchan
• Kyōgoku
• Minami-ku, Sapporo
• Niki
• Otaru
• Yoichi

Per Japanese census data, the population of Akaigawa has declined in recent decades.

Historical population

Year	Pop.	±%
2000	1,512	—
2010	1,262	−16.5%
2020	1,165	−7.7%

• Akaigawa Elementary School
• Akaigawa Junior High School
• Miyako Elementary School

Akaigawa's mascot is Akarin (あかりん), a 10-year-old farmer girl who is active day and night either through sports or farming. Her favourite food is a mixture of fresh produce and rice. She usually ends her sentences with "desu no" (ですの) which, along with her eyes, are her charm points. She became the mascot on 18 July 2014.

• Media related to Akaigawa, Hokkaido at Wikimedia Commons
• Official Website (in Japanese)