Richard Tsai (Chinese: (蔡明興; born 1957 or 1958) is a Taiwanese billionaire businessman. He and his brother Daniel Tsai (蔡明忠) run Fubon Financial Holding Co., founded by their father Tsai Wan-tsai (蔡萬才). On the Forbes 2016 list of the world's billionaires, Richard Tsai was ranked #722 with a net worth of US$2.4 billion.
Tsai resides in Taipei, Taiwan. He is married and has two children.