Thet Thinn began her career as a model when she joined the sixth and final season of "Asia's Next Top Model" in 2018, representing her home country of Myanmar. After finishing in fourth place, she continued to work on the runway and was signed to top modeling agencies such as Storm Model Management and Next Management in Los Angeles. Currently, she is represented by Marilyn Agency in New York, Premium Models in Paris, and The MiLK Collective in London, according to her profile on Models. Thinn has walked runway shows for brands like Gucci, Jacquemus, and Bottega Veneta and appeared in campaigns for Kate Spade, Victoria Beckham Beauty, and Essentiel Antwerp. She has also been featured in magazines such as Vogue Thailand and Hunger Magazine, as seen on her official Instagram page.

Born on April 19, 1996, Thinn studied English at Dagon University in Myanmar and was passionate about modeling even as a child. In a 2019 interview, she said, "When I first started, my family [didn't] want me to do modeling. They wanted me to focus on my education before." Aside from Myanmar and New York, Thinn has also resided in London and the Philippines.

Aside from strutting the runway, the 27-year-old said she is passionate about helping underprivileged kids back home in Myanma during a 2019 chat with Models. "I really love kids and when I am home I like to volunteer for the child orphan," she said. "I enjoy helping kids study in my country. Educating the children is so important for the future." 

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