Deodeo Corporation (株式会社デオデオ, Kabushiki gaisha Deodeo) was a consumer electronics retailer chain based in Hatsukaichi, Hiroshima, Japan, having served the Chūgoku region.

The company operated until September 30, 2009, when it changed its name to EDION West Corporation a day later.

From 1977 to 1979, Daiichi was ranked number one in the home appliance industry in a Nikkei Ryutsu Shimbun specialty store survey.

[3] On March 29, 2002, DEODEO and Chūbu region chain Eiden (エイデン) founded EDION Corporation.

On October 1, 2012, all Deodeo, Midori, and Eiden stores, as well as Kantō region chain Ishimaru Denki (石丸電気株式会社, Kabushiki gaisha Ishimaru Denki), were completely rebranded into EDION; the Deodeo name continues to be used as a store brand.