Semisi Tupou Ta'eiloa (born 25 November 2003) is a New Zealand rugby union player, who plays for and . His preferred position is flanker or number 8.
Tupou Ta'eiloa attended Otago Boys' High School where he earned selection for the Otago academy and New Zealand U19.
In 2023, he was charged with drink driving, but escaped conviction.
Tupou Ta'eiloa has represented in the National Provincial Championship since 2023, being named in their squad for the 2024 Bunnings NPC. He was called into the squad ahead of Round 1 of the 2025 Super Rugby Pacific season, making his debut against the .