Semisi Tauelangi Fakahau (11 February 1948 − 27 October 2022)[1][2] was a Tongan politician and Cabinet Minister.

Fakahau was educated at Vudal Agricultural College in Papua New Guinea.

[3] In January 2019 his portfolio was split, with Losaline Ma'asi taking Agriculture, Food, and Forestry and Fakahau retaining Fisheries.

Following the death of ʻAkilisi Pōhiva he was not appointed to the cabinet of Pohiva Tuʻiʻonetoa.

[4] On 28 December 2021, he was appointed to the Cabinet of Siaosi Sovaleni as Minister of Fisheries.