John Gruber
 John Gruber (born 1973) is a writer and blog publisher from the greater Philadelphia Pennsylvania area of the United States. Gruber received his Bachelor of Science in computer science from Drexel University. He worked for Bare Bones Software from 2000 to 2002 and Joyent from 2005 to 2006. His main project is Daring Fireball a technology blog that has become his full-time job.