Dengeki Daioh

is a Japanese shōnen manga magazine published by ASCII Media Works under the Dengeki brand. Many manga serialized in Dengeki Daioh were later published in tankōbon volumes under ASCII Media Works' Dengeki Comics imprint. The magazine is sold every month on the 27th.

Two special editions of the magazine called Dengeki Moeoh and Dengeki Daioh Genesis are sold bimonthly and quarterly, respectively.

History
The publication originated from Bandai's Cyber Comix magazine, which later became the short-lived Media Comix Dyne (lasting for three issues). After the cancellation of Media Comix Dyne, MediaWorks launched Dengeki Daioh as a quarterly publication in 1994 which eventually developed into a bi-monthly magazine in 1996, and later into a monthly publication when its name was changed to its current title, Monthly Comic Dengeki Daioh.

In recent years, the magazine has taken to publishing information on anime and video games as well where half the magazine contains such information. Dengeki Daioh celebrated its thirteenth year of publication in 2007. Starting with the August 2008 issue, sold on June 27, 2008, Dengeki Daioh increased the number of manga series serialized in each issue which expanded the page count from about 700 to 900 pages per issue.