Coëtlogon

Coëtlogon can refer to:


 * Alain Emmanuel de Coëtlogon, Marshal of France
 * Marine de Carné de Trécesson de Coëtlogon, French diplomat
 * Coëtlogon, Côtes-d'Armor, a French commune
 * Coëtlogon, a French Navy frigate under the command of Abel-Nicolas Bergasse du Petit-Thouars during the Boshin war in Japan.