Aello (/ˈeɪəloʊ/; Ancient Greek: Ἀελλώ, Aellō) in Greek mythology was one of the Harpy sisters who would abduct people and torture them on their way to Tartarus. She is also referred to as:

It is claimed she is the mother of Achilles's immortal steeds Balius (Balios) and Xanthus (Xanthos) by Zephyrus, but some sources claim it was really her sister Celaeno.