Carbuncle (disambiguation)

A carbuncle is an abscess larger than a boil, usually with one or more openings draining pus onto the skin.

Carbuncle may also refer to:
 * Carbuncle (gemstone), a deep-red cabochon cut gemstone usually garnet, specifically almandine
 * Carbuncle (heraldry), a charge or bearing, consisting of eight radii, or spokes; four of which make a common cross, and the other four a saltire
 * Carbuncle (legendary creature), a legendary creature in South American folklore that is associated with gemstones
 * The Carbuncle, a small island off Port Sorell, Tasmania, Australia
 * Carbuncle Hill Archaeological District, RI-1072-1079, a historic district in Coventry, Rhode Island