| Atomu Shigenaga | |
| Birth Date: | 14 September 1988 |
| Birth Place: | Kumamoto Prefecture, Japan |
| Height: | 1.72 m |
| Weight: | 60 kg |
| Yearpro: | 2008 |
| Tour: | Japan Golf Tour |
| Prowins: | 1 |
| Japwins: | 1 |
is a Japanese professional golfer who plays on the Japan Golf Tour.
Shigenaga has played on the Japan Golf Tour since 2013. He won his first tournament at the 2018 Token Homemate Cup.[1]