Otoineppu (音威子府村, Otoineppu-mura) is a village located in Kamikawa Subprefecture, Hokkaido, Japan.

The total area of Otoineppu is 275.64 square kilometres (106.43 sq mi).

[1][3][4] In the Ainu language, Otoineppu means "muddy river mouth".

The JR Hokkaido Sōya Main Line and Japan National Route 40 runs along the Teshio River through Otoineppu.

The village is ringed in by mountains from all four directions, and sees significant temperature extremes.

[8] Otoineppu is served by the JR Hokkaido Sōya Main Line.

[1] Japan National Route (JNR) 40 runs along the Teshio River through Otoineppu, and connects Asahikawa in central Hokkaido to Wakkanai at the northern tip of the prefecture.