Thakoon Panichgul (b. 1974) is a Thai-American fashion designer. Panichgul was featured in the September 2009 issue of Harper's Bazaar with Derek Lam, Bert and Ernie in a fashion spread celebrating Sesame Street's 40th anniversary.
Among Panichgul's celebrity clients are U.S. first lady Michelle Obama, Demi Moore, and Sarah Jessica Parker. His fashions have been featured in a line for GAP stores, and he was the subject of the 2009 documentary The September Issue.