| Tokyo Gas Co., Ltd. | |
| Native Name: | 東京瓦斯株式会社 |
| Native Name Lang: | ja |
| Romanized Name: | Tōkyō Gasu Kabushiki-gaisha |
| Type: | Public (K.K.) |
| Traded As: | Nikkei 225 Component |
| Location City: | Minato, Tokyo |
| Location Country: | Japan |
| Area Served: | Tokyo, Kanagawa, Saitama, Chiba, Ibaraki, Tochigi, Gunma, Yamanashi, Nagano |
| 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 2011) |
| Operating Income: | (FY2011) |
| Net Income: | (FY2011) |
| Assets: | (FY2011) |
| Num Employees: | 16,832 (2013) |
| Key People: | SASAYAMA Shinichi[1] (President and CEO) |
| Homepage: | tokyo-gas.co.jp |
, founded in 1885, is the primary provider of natural gas to the main cities of Tokyo, Kanagawa, Saitama, Chiba, Ibaraki, Tochigi, Gunma, Yamanashi, and Nagano., Tokyo Gas is the largest natural gas utility in Japan.