Evan "Ev" Clark Williams (born March 31, 1972) is an American billionaire technology entrepreneur and executive. He is a co-founder of Twitter, and served as CEO of Twitter, Inc. from 2008 to 2010 and as a member of its board from 2007 to 2019. He founded Blogger and Medium, two of the largest blogging internet platforms. In 2014, he co-founded the venture capital firm Obvious Ventures. As of February 2022, his net worth is estimated at US$2.1 billion.

Early life and education
Williams was born in Clarks, Nebraska, as the third child of Laurie Howe and Monte Williams. He grew up on a farm in Clarks, where he assisted with crop irrigation during the summers. He attended the University of Nebraska–Lincoln for