Tyler Howard Winklevoss (born August 21, 1981) is an American investor, founder of Winklevoss Capital Management and Gemini cryptocurrency exchange, and Olympic rower. Winklevoss co-founded HarvardConnection (later renamed ConnectU) along with his brother Cameron Winklevoss and a Harvard classmate of theirs, Divya Narendra. In 2004, the Winklevoss brothers sued Mark Zuckerberg, claiming he stole their ConnectU idea to create the social networking service site Facebook. As a rower, Winklevoss competed in the men's pair rowing event at the 2008 Summer Olympics with his identical twin brother and rowing partner, Cameron.