John Green (born August 24, 1977 in Indianapolis, Indiana) is an American author of young adult fiction.

John and his brother Hank ran a video blog project via YouTube called Brotherhood 2.0. The original project ran from January 1 to December 31, 2007, with the premise that the brothers would cease all text-based communication for the year and converse only by video blogs. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.