Stefan Nguyen (Vietnamese: Nguyễn Tuấn Tú Stefan; born 24 February 1992) is a retired Vietnamese-Swedish professional basketball player for the Hanoi Buffaloes of the VBA and Saigon Heat of the ABL.

He is a member of the Vietnamese Men's National Team and represented them last in the SEA GAMES 30 in the Philippines.

During his youth years and being considered one of the best Swedish talents he played against several NBA players of today such as Jonas Valančiūnas, Enes Kanter, Dario Šarić, Rudy Gobert and more.

2 years with 08 led to a move to Malbas Basket where he would be the key player to lead his team to the SBL in Sweden.

After that successful season Stefan looked to play overseas and got in touch with Saigon Heat.