Chien Wei-chuan (born 8 March 1971), also known as Rosa Chien, is a Taiwanese basketball coach and former player, widely considered the best female basketball player in Taiwanese history. She played on the Chinese Taipei women's national basketball team from 1988 to 2008, taking part in 10 FIBA Asia Championship for Women. She is currently the commissioner of the T1 League. On August 6, 2022, she was announced as the commissioner of the T1 League.