10 Dec, 12:23
Ireland's John Lacey will referee his first ever RBS 6 Nations match in February, while Alain Rolland is also included in the Elite Panel in what is his last season.
The 196cm, 112kg player came up through Canterbury's academy system and also played for the Hawkes Bay club.
A former New Zealand Sevens and Under-21 player, Naoupu played Super 14 rugby for the Highlanders this season and will link up with former team-mate Niva Ta'auso at the Sportsground.
Now 26, Naoupu actually played for New Zealand in their IRB Under-21 World Championship final victory over Ireland back in 2004.