Steve Walsh has retired from all forms of refereeing to pursue business interests outside of rugby.
The 43-year-old has been to four World Cups but six months shy of the next global tournament has decided to quit.
Walsh has controlled 56 tests and made his Super rugby refereeing debut in 1997.
"I have lived my dream and I am truly grateful for every experience that I have had in rugby. It's been an incredible journey," he said.
"I would be doing all of the key stakeholders in the game - from officials to the players to the fans - an injustice if I was unable to 100 per cent channel my energies and devote my full attention towards refereeing Super Rugby and Test Matches. I would not want my new focus to impact the integrity of the competitions I am involved in."