Thanawin Teeraphosukarn (ธณวิน ธีรโพสุการ; born December 5, 2000), nicknamed Louis (หลุยส์), is a Thai singer-songwriter and actor under GMMTV. He is currently attending the D'Amour College of Liberal Arts and Sciences at Assumption University, majoring in Aeronautic Engineering.

Starting as a trainee under Mellow Me, he ranked in the top eight rookie stars in BRAVO! BOYS project. He made his acting debut in 2019 with a main role in the series "Miss Culinary" (นางสาวก้นครัว).

His first project under GMMTV was "Fish Upon the Sky" (ปลาบนฟ้า), for which he released his first song under GMMTV Records, "Khang Khang". His debut single "Teach Me" was released in 2018 under Mellow Me.