Triacanthodes is a genus of marine ray-finned fishes belonging to the family Triacanthodidae, the spikefishes. These fishes are found in the Indian and Pacific Oceans.

The spikefishes are ray-finned fishes related to the pufferfishes and triggerfishes. They live in deep waters; more than 50 meters, but above the continental shelves. They are found in the Atlantic, I