In Greek mythology, Borysthenis () may refer to two distinct individuals:
Borysthenes, one of the three Muses that were daughters of Apollo. Her sisters were Apollonis and Cephisso.Eumelus, fr. 35 as cited from Tzetzes on Hesiod, 23 the Scythian Earth-and-Water goddess Api, who was called because she was the daughter of the god of the Borysthenēs river (now the Dnipro river).
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