T yler Winklevoss, along with his identical twin brother Cameron, is an American cryptocurrency entrepreneur and investor. The brothers first gained international fame for their legal battle against Mark Zuckerberg, whom they, along with their partner Divya Narendra, had hired to work on their social networking idea, HarvardConnection, while they were all students at Harvard. They later sued Zuckerberg, claiming he had stolen their idea to create Facebook. They received a settlement that included cash and a significant amount of early Facebook stock, which became the foundation of their wealth.

After their feud with Facebook, which was dramatized in the film "The Social Network," the Winklevoss twins became early and evangelistic investors in Bitcoin. They famously used a portion of their Facebook settlement to amass one of the world's largest private holdings of the cryptocurrency. They have since built a major business empire in the digital asset space, co-founding the Gemini cryptocurrency exchange and the venture capital firm Winklevoss Capital. They are considered pioneers and major power brokers in the crypto industry.