Dustin Nguyen (born Nguyễn Xuân Trí; September 17, 1962) is a Vietnamese-American actor and martial artist. He is best known for his roles as Harry Truman Ioki on 21 Jump Street and as Johnny Loh on V.I.P. Recently, he starred as Zing in the Cinemax/Max martial arts crime drama series Warrior. In film, he is known for starring in Little Fish, The Doom Generation and The Rebel.

Nguyen was born Nguyễn Xuân Trí in Saigon, South Vietnam, and was one of two sons in his family. His mother, My Le, was an actress and dancer, and his father, Xuân Phát, was an actor, comedian, writer, and producer in Vietnam. The family left Vietnam in April 1975 during the fall of Saigon.

In his teens, his family arrived in Guam as refugees, and then the family was moved to a refugee camp in Fort Chaffee, Arkansas. Finally with the assistance of a Methodist church they relocated to Des Peres, Missouri, a suburb of St. Louis. The 21 Jump Street season 2 episode "Christmas in Saigon", which first aired in December 1987, is based in his experiences escaping Vietnam and eventually arriving in the United States; Nguyen also served as a technical advisor in the episode.

Nguyen graduated from Garden Grove High School in Garden Grove, California, he attended Orange Coast College and majored in communications but later dropped out to pursue acting full time.

Nguyen practices several martial arts including Muay Thai, Tae Kwon Do, Eskrima, and Jeet Kune Do.

He made his acting debut on Magnum, P.I., portraying a Cambodian freedom fighter in the episode "All For One." He was a series regular on both 21 Jump Street and VIP, and has guest-starred on a number of other series, including General Hospital, Highlander, and most notably seaQuest DSV, playing the role of Chief William Shan. Moreover, he had a cameo role in Charlie's Angels. Nguyen also auditioned for the role of Liu Kang in Mortal Kombat, but lost out to Robin Shou. In 1993 he played a Vietnamese man sent off to fight with the Viet Cong, in the film Heaven & Earth. In 2005, Nguyen starred as a former heroin addict opposite Academy Award-winner Cate Blanchett in the critically acclaimed Little Fish. He starred in the 2007 films The Rebel and Saigon Eclipse. In 2008 he starred in the Vietnamese martial art film Huyen Thoai Bat Tu (The Legend Is Alive, The Immortal Legend) where he plays a mentally disabled martial artist. Nguyen screened in 2009 the thriller The Gauntlet directed by Matt Eskandari; he stars with Chinese actress Bai Ling. He made a small cameo in 22 Jump Street as Vietnamese Jesus.

Nguyen continues to act and make films in Vietnam full-time. He made his feature directorial debut in the Vietnamese fantasy film Once Upon a Time in Vietnam, in which he also starred. He then starred in the Vietnamese film Gentle that premiered at the 2015 Busan International Film Festival where he received strong reception for his performance.

He was cast in Cinemax's Warrior in a recurring role before he officially joined the main cast in season two of the series.