The Xiuguluan River (Chinese: 秀姑巒溪; Hanyu Pinyin: Xiùgūluán Xī; Tongyong Pinyin: Siòuguluán Si; Wade–Giles: Hsiu4-ku1-luan2 Hsi1; Pe̍h-ōe-jī: Siù-ko͘-lôan-khoe) is the eighth-longest river in Taiwan with a total length of 104 km (65 mi).

It flows through the Huadong Valley before emptying into the Pacific Ocean in Fengbin, Hualien.

[1][2] The river originates on the eastern side of Mabolasi Mountain (on the border with Taitung County) and flows through Xiuguluan Mountain.

[3] The river is known for its many rapids and has become a prime destination for rafting,[3] especially on a 24 km (15 mi) section from Rueisuei Bridge to the Changhong Bridge.

[4] There are five major tributaries, listed here from mouth to source:[2]