John C. Dvorak is an American columnist and broadcaster in the areas of technology and computing. His writing extends back to the 1980s, when he was a regular columnist in a variety of magazines. He was vice president of Mevio, and has been a host on TechTV and TWiT.tv. He is currently a co-host of the No Agenda podcast.

No Agenda is a podcast hosted by Adam Curry and John C. Dvorak that is recorded twice a week on Thursdays and Sundays at 11 a.m. Pacific Time. The show is primarily focused on mainstream media deconstruction.