John Michael Scalzi II is an American science fiction author and former president of the Science Fiction and Fantasy Writers of America. He is best known for his Old Man's War series, three novels of which have been nominated for the Hugo Award, and for his blog Whatever, where he has written on a number of topics since 1998. He won the Hugo Award for Best Fan Writer in 2008 based predominantly on that blog, which he has also used for several charity drives. His novel Redshirts won the 2013 Hugo Award for Best Novel. He has written non-fiction books and columns on diverse topics such as finance, video games, films, astronomy, writing and politics, and served as a creative consultant for the TV series Stargate Universe.

The Science Fiction and Fantasy Writers of America, doing business as Science Fiction and Fantasy Writers Association, commonly known as SFWA is a nonprofit 501(c)(3) organization of professional science fiction and fantasy writers. While SFWA is based in the United States, its membership is open to writers worldwide. The organization was founded in 1965 by Damon Knight under the name Science Fiction Writers of America. The president of SFWA as of July 1, 2021 is Jeffe Kennedy.