Charlie Cheever (born August 2, 1981 in Pittsburgh, Pennsylvania) is the co-founder of Quora, an online knowledge market.

[3] In 2016, it was announced that he is working as the CEO of Expo (formerly known as Exponent), a startup company that is an open-source platform for making universal native apps for Android, iOS, and the web with JavaScript and React.

[7] Cheever's project is said to have partially inspired fellow Harvard alum Mark Zuckerberg to create the website FaceMash.

[9] Cheever and Adam D’Angelo were responsible for most of the critical programming work involved with turning Facebook from a website into a platform.

[10][8] Cheever became known as a top engineer at Facebook after creating one of the most important internal tools, BunnyLol.

Expo makes it easier to develop apps using React Native for major platforms including Android, iOS and Web.