| Full name | Yokogawa Musashino Atlastars | |
|---|---|---|
| Union | Japan Rugby Football Union | |
| Nickname(s) | Atlastars | |
| Founded | 1946 | |
| Location | Musashino, Japan | |
| Coach(es) | Leo Lafaiali'i | |
| ||
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Yokogawa Musashino Atlastars is a Japanese rugby union team based in Musashino, Tokyo. They won promotion to the Top League for one season in 2008–09 being relegated that same season.