Karmichael Hunt is staying with the Waratahs, re-signing with the Super Rugby team for the 2020 season.

Hunt, 33, joined the Waratahs in January and played 12 games before suffering a knee injury.

Waratahs head coach Rob Penney is excited to have Hunt as part of his squad for next season.

"Everyone I've spoken to can't speak highly enough of Karmichael, his attitude, professionalism and experience will be extremely valuable this season," he said in a statement on Monday.

"He's a supremely talented athlete and from all reports, sets the example for our younger guys in the way he goes about his business, looks after his body and prepares for games.

"We've all seen what Karmichael's capable of across what's been an illustrious career, he brought that to the Waratahs in 2019 and will again play a vital role in the midfield next season.

"He's a player I'm really looking forward to working with and I'm pleased he's remaining a Waratah for another season."

Hunt is hoping for an improved campaign from the Waratahs, who finished 2019 with a 6-10 win-loss record as Daryl Gibson resigned as coach in June.

"I'm grateful for the opportunity the Waratahs gave me to play Super Rugby and the care and support provided by my team-mates and everyone within the organisation," Hunt said.

"My family and I are happy in New South Wales and the environment at the Waratahs is a huge part of that, it's a place that's been great for me both professionally and personally.

"We've got a good young squad of guys that I'm looking forward to playing alongside, sharing some of my experiences with and contributing to their development.

"Next season is a new challenge for all of us, it's exciting and I can't wait to get started."