| Atsuya Yaguchi | |
| Native Name: | 矢口敦也 |
| Native Name Lang: | ja |
| Birth Date: | 27 November 1976 |
| Birth Place: | Matsumoto, Nagano, Japan |
| Sport: | Sledge hockey |
| Position: | Forward |
| Team: | Nagano Thunderbirds |
| Headercolor: | lightsteelblue |
| Show-Medals: | yes |
is a Japanese sledge hockey player. He was part of the Japanese sledge hockey team that won a silver medal at the 2010 Winter Paralympics.
He has a functional disability of his trunk.[1]