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