Kohei Miyauchi
- Title: Kohei Miyauchi
- Popularity: 11.275
- Known For: Acting
- Birthday: 1929-08-04
- Place of Birth: Kagoshima Prefecture, Japan
- Homepage: https://www.aoni.co.jp/search/miyauchi-kohei.html
- Also Known As: Kouhei Miyauchi, 宮内幸平, 宮内 幸平, Kōhei Miyauchi