Tanzir Chowdhury Tuhin is a Bangladeshi musician, singer-songwriter, actor, painter, and architect, best known as a longtime member of the independent music group Shironamhin. He joined the group as lead vocalist in 2000. Shironamhin subsequently achieved national success with their albums Bondho Janala, Shironamhin Rabindranath and Shironamhin Shironamhin. By the late 2000s, they had become one of the most well-known group in the rock music history of Bangladesh. Amid personal conflict, Tuhin left Shironamhin in 2017 and form a new band named Avash at the end of that year.
Tuhin has a well reputed solo career which has included several studio soundtracks: Tobu is the first solo track has been scheduled to release in 2017.
In 2014, Tuhin has taken part as host for BBC's reality television series Amrai Pari to raising public awareness about combat extreme weather. In 2016, he took part "Inauguration drive for Toys R Yours season 2" for children most of whom are from are from underprivileged families.