"I am also extremely excited to be joining back up with South Sydney. I cannot wait to get back into the Rabbitohs culture, full of great people and passionate Members and supporters."
South Sydney coach Michael Maguire is thrilled to have Burgess back at Redfern.
"I could not be happier to see Sam coming home to the Rabbitohs," coach Maguire said in a club statement.
"He had an enormously positive impact on our club, both on and off the field, throughout the five seasons he was here, and to be bringing back one of the game's most dominant players is fantastic for not only our club, but the game itself."