Hedgehog (disambiguation)

A hedgehog is a small, spiny mammal.

Hedgehog may also refer to:
 * Domesticated hedgehog
 * Hedgehog (band), a Beijing rock band
 * Hedgehog cactus (disambiguation), a common name for Pediocactus, Echinocereus, or Echinopsis
 * Hedgehog plant, Erinacea anthyllis
 * Hedgehog (chess), a pawn formation in chess
 * Hedgehog (weapon), an anti-submarine weapon
 * Czech hedgehog (military), an anti-tank, anti-vehicle obstacle
 * Hedgehog signaling pathway, a signal transduction pathway
 * The Hedgehog, a 2009 French film directed by Mona Achache
 * Hedgehog (EP), an EP by Melt-Banana
 * Hedgehog (film)
 * Hedgehog (geometry), a curve formed as the envelope of lines determined by a support function
 * Hedgehog (hypergraph), a hypergraph formed from a complete graph by adding another vertex to each edge.