| Kayoko Sugiyama | |
| Height: | 1.78 m |
| Birth Place: | Ami, Ibaraki, Japan |
| Nationalyears: | 1981–1988 |
| Teamnumber: | 8 (1984) 2 (1988) |
| Position: | Outside hitter |
Kayoko Sugiyama (Japanese: 杉山 加代子; born 31 October 1961) is a Japanese former volleyball player who competed in the 1984 Summer Olympics and in the 1988 Summer Olympics.
In 1984, she was a member of the Japanese team that won the bronze medal in the Olympic tournament.
Four years later, she finished fourth with the Japanese team in the 1988 Olympic tournament.