Hydnum umbilicatum, commonly known as the depressed hedgehog, is a species of tooth fungus in the family Hydnaceae. It was scientifically described in 1902 from New York by American mycologist Charles Horton Peck.
The cap is wide with spines up to long. The stem is long and thick. The spore print is white. The species be confused with Hydnum repandum, a much larger species found in Europe.
Hydnum umbilicatum is found in eastern North America and associated with pines. The mushroom is edible and good.