The Australia batter returns to Cardiff next summer when the Ashes are also back on the line. It extends a relationship with the club that began in 2019
Glamorgan have secured the services of Marnus Labuschagne until the end of the 2024 season.
The Australia batter has played 21 first-class matches for the Cardiff club, scoring 1,719 runs at 52.09 and taking 31 wickets.
In 14 T20s, he has hit 508 runs and collected a dozen scalps with the ball.
Currently ranked No.2 in the ICC Test batting rankings, the 28-year-old has struck 2,539 runs in the longest format for his country.
Marnus Labuschagne - Glamorgan career stats
First-class
Matches: 21 Runs: 1,719 Average: 52.09 Wickets: 31 Average: 36.70
List A
Matches: 8 Runs: 123 Average: 17.57 Wickets: 7 Average: 48.57
T20
Matches: 14 Runs: 508 Average: 42.33 Wickets: 12 Average: 24.66
His return for next summer comes with the Ashes back on the line across a five-Test series expected to take place in June and July.
"I love playing for Glamorgan, and look forward to coming to Cardiff and Wales every year," said Labuschagne, who first joined in 2019.
"It's become a second home for me and my family and I'm rapt that I'm coming back for another two years.
"Since the moment I got here, the Glamorgan players, staff and supporters have treated me like I was one of their own and I'm extremely grateful for that.
"I can't wait to return to Wales and help push the team forward to win more silverware."
Labuschagne has established himself as one of the best batters in world cricket in the last three years (Buddhika Weerasinghe/Getty Images)
Director of cricket Mark Wallace added: "Marnus has been a wonderful addition to the dressing room, and it is amazing to be able to bring a world-class talent back to Glamorgan.
"His passion and love for the game is infectious and you only need to be around him for a couple of minutes to realise how much the club and the supporters mean to him.
"He has been an unbelievable player for us during his short time with us and has been a real role model for our younger players.
"We cannot wait to have him back in Wales for the next two years."