| Kazuo Hanaoka | |
| Native Name: | 花岡 一夫 |
| Birth Date: | 11 February 1949 |
| Height: | 1.85m (06.07feet) |
| Classes: | Soling |
| Updated: | 28 February 2020 |
Kazuo Hanaoka (born: 11 February 1949) is a sailor from Japan. who represented his country at the 1988 Summer Olympics in Busan, South Korea as crew member in the Soling. With helmsman Kazunori Komatsu and fellow crew members Tadashi Ikeda they took the 11th place.