Tuʻungafasi is a surname. Notable people with the surname include:

Isi Tuʻungafasi (born 1995), Tongan born New Zealand rugby union player Leka Tuʻungafasi, Tongan rugby union player Mofuike Tuʻungafasi, Tongan rugby union player Ofa Tuʻungafasi (born 1992), Tongan rugby union player