The Arashan (Kyrgyz: Арашан), is a river in the Ak-Suu District, Issyk Kul Region, northeastern Kyrgyzstan.

It flows north from the Terskey Alatau mountains, near Karakol and Issyk Kul Lake.

It flows through Altyn Arashan, a mountain resort of hot springs and forested valley.

It flows into the river Ak-Suu, a tributary of the Jyrgalang.

This article related to a river in Kyrgyzstan is a stub.