Sir Fiatau Penitala Teo (23 July 1911, in Funafuti – 25 November 1998) was a political figure from the Pacific nation of Tuvalu.
Teo was appointed Chief in the House of Chiefs of Niutao in 1945 and was reappointed as a Chief on 29 June 1997 after his service as the first Governor General of Tuvalu.
Teo was married to Uimai (Tofiga) Teo.Teo was appointed as an Ordinary Member of the Civil Division of the Most Excellent Order of the British Empire (MBE) in 1956; awarded the Imperial Service Order (I.S.O.); and appointed as an Ordinary Member of the First Class, or Knight Grand Cross of the Most Distinguished Order of Saint Michael and Saint George (GCMG) in 1979.