Toho Gas Co., Ltd. (東邦瓦斯株式会社, Tōhō Gasu Kabushiki-gaisha), commonly written as 東邦ガス, is a Japanese gas company based in Nagoya, Japan.

It supplies gas to the Tōkai region, especially the Chūkyō metropolitan area.

It is also one of Nagoya's "four influential companies" along with Meitetsu, Matsuzakaya, and Chubu Electric Power.

Toho Gas was initially founded to the Toho Electric Power Company (東邦電力) in 1922, as a result of the merger of two electric power companies, Kansai Denki and Kyushu Dentō Tetsudō.

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