| Yuko Maruyama | |
| Fullname: | Yuko Maruyama |
| Nickname: | Maru |
| Birth Date: | September 17, 1989 |
| Birth Place: | Matsumoto, Nagano, Nagano, Japan |
| Spike: | 298cm |
| Block: | 290cm |
| Weight: | 65kg (143lb) |
| Position: | Middle Blocker |
| Currentclub: | NEC Red Rockets |
| Currentnumber: | 24 |
is a Japanese volleyball player who plays for NEC Red Rockets.