Denkou Choujin Gridman (電光超人グリッドマン, Denkō Chōjin Guriddoman, lit. Lightning Superman Gridman), known as Gridman the Hyper Agent in some English-speaking territories, is a 1993–1994 Japanese tokusatsu "Giant Hero" series created by Tsuburaya Productions (the producers of Ultraman) and would be Tsuburaya's last non-Ultra superhero production before Bio Planet WoO. It was the inspiration and source material for DiC Entertainment's Superhuman Samurai Syber-Squad.

Shot on live video, Gridman was the first series by Tsuburaya Productions to utilize D-2 digital video for its special effects scenes, allowing for smoother slow-motion photography. Tsuburaya, having switched to digital techniques since then, would continue to use D-2 for all future productions.

The series was released in the United States with subtitles in English on the television network TOKU on December 18, 2017. The series was also made available on Toku's streaming service and on its Amazon Prime channel.

On October 30, 2020, the series began streaming episodes weekly on Tsuburaya's Ultraman Official YouTube channel to mark the second anniversary of SSSS.Gridman. Episodes are released each Friday at 6:30pm JST and have English subtitles available. Two weeks after the premiere date of each episode, the episode is removed from the channel. Mill Creek Entertainment released the complete series on Blu-ray for the first time in North America on August 17, 2021.