CA Saint-Étienne Loire Sud Rugby
| Full name | Club de rugby de SAINT-ETIENNE, RCSE42 | |
|---|---|---|
| Founded | 1908 | |
| Location | Saint-Étienne, France | |
| Ground(s) | Stade Etivallière (Capacity: 3,000) | |
| President | Frédéric Baudouin | |
| Coach(es) | Jean-Sébastien Bignat Cédric Chaubeau | |
| League(s) | Fédérale 1 | |
| 2010–11 | 16th (Pro D2) (relegated) | |
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| Official website | ||
| www | ||
Club Athlétique de Saint-Étienne Loire Sud Rugby, CASE Loire Sud Rugby, or simply CASE, is a French rugby union club from Saint-Étienne in the Loire département. As of 2011, they were competing in Fédérale 1, having been relegated from Rugby Pro D2 at the end of the 2010–11 season.