Regarded as one of the best batsmen of all time, Sangakkara retired from one-day international cricket after the recent World Cup, having played 404 ODIs for Sri Lanka.
He has indicated his intention to call time on his Test career by the end of August. To date he has represented his country 130 times in the long format of the game.
“Kumar’s signing is not only huge for the Hobart Hurricanes but for the Big Bash League overall,” Hurricanes Coach Damien Wright said.
“Kumar is not only an extremely talented batsman but also a leader which is also fantastic.”
Sangakkara will be making his first appearance in the BBL in its fifth season.
“The Big Bash League is a fun, exciting and family friendly league with a very high quality of cricket,” he said.
“There are so many great players involved and I am really looking forward to the challenge.”