David Callahan is an American writer and editor. He is the founder and editor of Inside Philanthropy, a digital media site, and Blue Tent Daily, which offers in-depth reporting on progressive organizations and the Democratic Party. Previously, he was a senior fellow at Demos, a public policy group based in New York City that he co-founded in 1999. He is also an author and lecturer. He is best known as the author of the books The Givers and The Cheating Culture.