Duncan Paia'aua is a professional rugby union player who plays as a centre for Top 14 club Toulon. Born in New Zealand, he represents Samoa at international level.

The Samoa national rugby union team represents the Samoa Rugby Union in men's international rugby union. They are also known as "Manu Samoa", which is thought to derive from the name of a Samoan warrior. They perform a traditional Samoan challenge called the siva tau before each game. Samoa Rugby Union were formerly members of the Pacific Islands Rugby Alliance (PIRA) along with Fiji and Tonga. They are ranked 11th in the world.