Shima Onishi
- Birthday: 8/22/1975
- Place of birth: Kanagawa, Japan
- Fame for: Acting
- Also known as: Shima Ônishi, Shima Ohnishi, Ohnishi Shima, Shima Ōnishi, Ōnishi Shima, Ônishi Shima, Oonishi Shima, Shima Oonishi, Onishi Shima, 大西 信満, Takijirou Oonishi, Takijiro Onishi, 大西滝次郎
