| Mosco de la Merced | |
|---|---|
 | |
| Birth name | Juan Valdez Valentino |
| Born | June 23, 1964 |
| Died | August 19, 2024 (aged 60) |
| Professional wrestling career | |
| Ring name(s) | Loco Valentino Mosco de la Merced (II) |
| Trained by | Rayo Dorado Loco Valentino, Sr. |
| Debut | 1983 |
Mosco de la Merced (Juan Valdez Valentino) (June 26, 1964 – August 19, 2024) was a Mexican Luchador or professional wrestler, best known for his time in Asistencia Asesoría y Administración (AAA) where he was a part of Los Vipers for many years. Before adopting the Mosco de la Merced ring name he worked as Loco Valentino for over 10 years. He was a former holder of the Mexican National Tag Team Championship with Fuerza Guerrera and held the Mexican National Atómicos Championship four times with Histeria, Psicosis II and Maniaco. His name roughly translates to "Fly of Mercy".