Aiono Fanaafi Le Tagaloa OM (25 June 1932 – 14 August 2014) was a chief (matai), scholar, historian and professor of Samoa.

She published extensively about Samoan history, land rights, fa'amatai chiefly governance and fa'a Samoa socio-political issues, as well as the role of women and children in the Pacific Islands.

Aiono Fanaafi was married to Le Tagaloa Pita, a high chief of Sili village on Savai'i island, who is also a former parliamentarian with cabinet portfolios.

Her daughter To'oto'oleaava Dr. Fanaafi Le Tagaloa, is a lawyer, writer, and head of Samoan International Finance Authority.

Aiono Fanaafi was born in Samoa and attended Malifa Primary School near Apia on the island of Upolu.