The Australian Test representative, 26, will join the Dragons from the Brisbane Broncos at the completion of the upcoming NRL season. 

St George Illawarra Dragons director of rugby league pathways Ian Millward said Hunt's signature was crucial for the Red V moving forward. 

"We were looking for a really competent, world-class halfback. It was about signing someone who has been a regular halfback and who has played at the highest level," he said.

"Ben's also a good family man and quite composed as a person. The Red V fans should be over the moon."

Millward said the club's immediate focus remained on the upcoming 2017 season.

"Ben's made a massive commitment to the Dragons but he also has a season to go with the Broncos," he said.

"It's important he has a great season with the Broncos, and it's important we have a great season with the personnel we currently have."