Denpa teki na Kanojo (電波的な彼女) is a Japanese light novel series by Kentarō Katayama, with illustrations by Yamato Yamamoto. Three novels were published by Shueisha, under their Super Dash Bunko imprint, between 2004 and 2005. The series remains unfinished. Under the title Denpa Biyori (電波日和), the first story in the series won an honorable mention at the Super Dash Novel Rookie of the Year Awards in 2003.
In 2009, a two-episode original video animation (OVA) adaptation was exclusively bundled with the pre-order editions of Kure-nai (another series by Katayama) DVD volumes 3 and 4.[2][3]
A manga adaptation, storyboarded by Daisuke Furuya and illustrated by Hiroshi Hiraoka, was serialized in Shueisha's seinen manga magazine Ultra Jump from July 2019 to January 2021, with its chapters collected in two tankōbon volumes.