Etha

Etha may refer to:


 * Saint Etha, an alternate name of the 5th-century Cornish Saint Tetha
 * Etna, Nebraska, formerly known as "Etha"
 * Etha (wasp), a genus of wasps

ETHA may refer to:
 * Altenstadt Air Base (ICAO code ETHA)

Etha may refer to: Ethan