Echidna (disambiguation)

Echidnas are Australian egg-laying mammals also known as spiny anteaters.

Echidna may also refer to:


 * Echidna (mythology), monster in Greek mythology and namesake of the mammal
 * (42355) Typhon I Echidna, the natural satellite of the asteroid 42355 Typhon
 * ECHIDNA, high-resolution neutron powder diffractometer at Australia's research reactor OPAL
 * Echidna (Re:Zero), a character in the light novel series Re:Zero − Starting Life in Another World
 * Echidna, character in the video game The Bouncer

Taxonomic genera

 * Echidna (fish), a genus of moray eels
 * Echidna, a junior homonym referring to the mammals commonly known as echidnas
 * Echidna, junior homonym for a genus of African snakes now treated as Bitis