Ulster have confirmed that Alby Mathewson will join the Province in July 2020 on a one-year deal.
Mathewson, who won the first of his five New Zealand caps in 2010, moved to Australia in December 2019 after a successful spell with Munster.
The 34-year-old became a fan favourite at Thomond Park after initially joining as short-term cover but he extended his stay until after the Rugby World Cup in Japan.
Mathewson also had spells with the Hurricanes, Blues, Western Force and Toulon, prior to joining Munster.
Ulster Head Coach Dan McFarland said: "We are delighted that a player of Alby’s quality is set to join the squad.
"His leadership skills and extensive experience will be a valuable addition to our squad – especially for our younger scrum-halves as they progress in their development journeys in the months ahead.
"We look forward to giving him a warm welcome as he makes Ulster his new team."