|Name in Japanese||ガルニエ|
|Debut (Anime)||Gosick Episode 09|
|Debut (Light Novel)||Volume III|
|Appears in||Anime, Light Novels|
|Voice Actor (Japanese)||Naomi Kusumi|
|Profession||Owner of Jeantan Department Store|
Garnier is the owner of Jeantan Department Store, a spacious shopping complex located in Saubreme. He manages the department store with a smile on his face, but is later suspected to hold deals with the black market.