Turner, 25, has played 56 NRL games for the Rabbitohs since making his first-grade debut against the Tigers in 2014 and has gone on to represent the Indigenous All Stars on two occasions.
Originally from Coonabarabran in country NSW, Turner has overcome a serious neck injury to establish himself in the first-grade squad at South Sydney.
“It’s great to see Kyle staying with the Club for an extended period,” Rabbitohs Head Coach Michael Maguire said.
“Kyle has worked very hard to get to where he is now in his career, and we think we’re yet to see the best of him.
“He works very hard every day to get the best out of himself and his teammates, he has the right attitude to make a success of his time in football, and we’ve seen how resilient he is coming back from his neck injury.
“His leadership qualities are starting to shine through and he is becoming a strong leader within the Club.
“The coaching staff and I are looking forward to continuing our work with Kyle over the coming seasons.”
Turner is pleased to have his future sorted out.
“I love playing here at Souths with this bunch of boys and I couldn’t be happier about re-signing,” Turner said.
“We’re a tight-knit team and we all work in the same direction each season so I couldn’t ask for more from my teammates and the coaching staff.
“I’m really looking forward to the years ahead, but at the moment my focus is the game against the Roosters this Thursday.”