Princess Lavinia Mata-ʻo-Tāone, Lady Maʻafu (2 April 1952 - 22 June 2018) was a member of the Tongan Royal family.

Lavinia Mata-ʻo-Tāone was born in Nukuʻalofa on 4 April 1952, the third daughter of Prince Fatafehi Tuʻipelehake and Princess Melenaite Tupoumoheofo Veikune.

[1] Her grandmother, Queen Sālote Tupou III, gave her the name "Mata-ʻo-Tāone" after a kie hingoa passed down from Princess Lavinia Māhanga.

[2] Lavinia married Siosaʻia Lausiʻi, who later inherited the title of Maʻafu Tukuiʻaulahi and its estates of Vaini and Tokomololo.

[8][9] The people of Vaini observed 10 days of mourning, with a sacred kava ceremony (pongipongi tapu) held at Ongokie Residence.