| Semisi Fakahau | |
| Office2: | Minister for Fisheries |
| Primeminister2: | Siaosi Sovaleni |
| Term Start2: | 28 December 2021 |
| Term End2: | 27 October 2022 |
| Predecessor2: | Lord Tuʻilakepa |
| Primeminister3: | ʻAkilisi Pōhiva |
| Term Start3: | 30 December 2014 |
| Term End3: | 10 October 2019 |
| Predecessor3: | Sangster Saulala |
| Successor3: | Lord Tuʻilakepa |
| Office4: | Minister for Agriculture, Food, and Forests |
| Primeminister4: | ʻAkilisi Pōhiva |
| Term Start4: | 30 December 2014 |
| Term End4: | 23 January 2019 |
| Predecessor4: | Sangster Saulala |
| Successor4: | Losaline Ma'asi |
| Constituency Mp5: | Tongatapu 8 |
| Term Start5: | 27 November 2014 |
| Term End5: | 27 October 2022 |
| Predecessor5: | Sione Taione |
| Successor5: | Johnny Taione |
| Birth Date: | 11 February 1948 |
| Birth Place: | Tonga |
| Death Place: | Tongatapu, Tonga |
| Party: | Democratic Party of the Friendly Islands |
Semisi Tauelangi Fakahau (11 February 1948 − 27 October 2022)[1] was a Tongan politician and Cabinet Minister. He was a member of the Democratic Party of the Friendly Islands.
Fakahau was educated at Vudal Agricultural College in Papua New Guinea.[1] Before entering politics he was Principal Fisheries Officer for the Tongan Government, a fisheries advisor to the Commonwealth Secretariat, and a freelance fisheries consultant.[1]
Fakahau was first elected to the Legislative Assembly of Tonga at the 2014 Tongan general election, and was appointed Minister for Agriculture, Food, Forestry and Fisheries. He was re-elected in the 2017 Tongan general election and reappointed to Cabinet.[2] 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.
He was re-elected in the 2021 election.[3] On 28 December 2021, he was appointed to the Cabinet of Siaosi Sovaleni as Minister of Fisheries.[4]
Fakahau died on 27 October 2022 in Tongatapu, Tonga, at the age of 74.[5] [6]