| COTH | Hyperbolic Cotangent | 双曲余切 |
| COTH | Call of the Haunted (Yugioh card game) | 幽灵召唤（Yugioh纸牌游戏） |
| COTH | Council of Teaching Hospitals and Health Systems | 教学医院和卫生系统委员会 |
| COTH | The Chronicle Of The Horse | 马的编年史 |
| COTH | Call of the Heard (gaming) | 听到的呼唤（游戏） |
| COTH | Hyperbolic Co-Tangent | 双曲共切线 |
| COTH | Council of Teaching Hospitals | 教学医院理事会 |
| COTH | Coups ThÉmatiques | Coups ThÉmatiques |