| Toho Gas Co., Ltd. | |
| Native Name: | 東邦瓦斯株式会社 |
| Trade Name: | 東邦ガス |
| Romanized Name: | Tōhō Gasu Kabushiki-gaisha |
| Type: | Public (K.K.) |
| Foundation: | June 26, 1922 |
| Location City: | Atsuta-ku, Nagoya |
| Location Country: | Japan |
| Area Served: | Aichi, Gifu, Mie |
| Industry: | Energy |
| Services: | Production, supply and sale of city gas Supply and sale of gas appliances, and related construction Construction for supply of city gas Energy services Supply of electricity |
| Revenue: | (FY 2018, consolidated) |
| Operating Income: | (FY 2018, consolidated) |
| Net Income: | (FY 2018, consolidated) |
| Assets: | (FY 2018, consolidated) |
| Equity: | (FY 2018, consolidated) |
| Num Employees: | 2,858 (2018) |
, 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. Following the merger, the company decided to spin off the gas business and acquisition of the Nagoya Gas Corporation.