Douglas M. Leone (born July 4, 1957) is an American billionaire venture capitalist and managing partner of Sequoia Capital.
Leone was born July 4, 1957, in Genoa, Italy. His family moved to the United States when Leone was 11 and settled in Mount Vernon, New York.
Leone earned a BS in mechanical engineering from Cornell University in 1979, a MS in industrial engineering from Columbia University in 1986, and a MS in management from the MIT Sloan School of Management in 1988.
Leone began his career working in sales and management positions at Sun Microsystems, Hewlett-Packard, and Prime Computer.
Leone joined Sequoia Capital in 1988. He became a managing partner in 1996, and the global managing partner in 2012. In 2017, Forbes named him a top 10 investor in the technology industry in the United States. He led Sequoia's international expansion into China and India.
Leone was responsible for investments including ServiceNow, Aruba, Meraki, Rackspace, Netezza, Arbor/Hyperion, RingCentral and MedExpress. He sits on the board of PlanGrid, NuBank, Medallia, ZirMed, ActionIQ, Numerify, and Lattice Engines.
In 2017, he was ranked #693 on Forbes' list of the World's Billionaires, with a net worth of US$2.9 billion.
Leone is married to Patricia Perkins-Leone. The couple have four children, and live in Atherton, California. They have been seeking to build an oceanfront home in Makena, Maui, Hawaii, but as of November 2017, the Hawaii Supreme Court has ruled against the development.