Achiroë or
Anchirrhoë (
Greek: ), or according to the
Bibliotheca Anchinoë (Ἀγχινόη), which is perhaps a mistake for Anchiroë, was in
Greek mythology a
naiad, a daughter of the river-god
Nilus. She was also the wife of
Belus, by whom she became the mother of
Aegyptus and
Danaus, and, according to some accounts,
Cepheus, and
Phineus. According to the
scholiast on
Lycophron, she was the consort of
Sithon, son of
Ares, and bore him two daughters,
Pallene and Rhoeteia, from whom two towns derived their names.