Apollonis (/ˌæpəˈloʊnəs/; Ancient Greek: Ἀπoλλωνίς means "of Apollo")^[1] was one of the three younger Mousai Apollonides (Muses) in Greek mythology and daughters of Apollo,^[2] who were worshipped in Delphi where the Temple of Apollo and the Oracle were located. The three sisters, Cephisso, Apollonis, and Borysthenis, are also known as Nētē, Mesē, and Hypatē^[3] where their names are synonymous with those of the lowest, middle, and highest chords of a lyre, further characterizing the Muses as the daughters of Apollo.