Mark Tuan, known as Mark, is an American rapper, singer, songwriter and model living in South Korea. He is a member of the Korean boy group Got7.

Along with JB, Jackson Wang, Park Jin-Young, Choi Youngjae, BamBam, and Kim Yugyeom, he was a founding member of the award-winning K-Pop boy band Got7. On January 16, 2014, he and Got7 released their single "Girls Girls Girls" on Mnet's M! Countdown.