| The Tough One | |
| Director: | Joaquín Luis Romero Marchent |
| Starring: | John Richardson, Gloria Milland, Evi Marandi, Fernando Sancho |
| Music: | Gianni Ferrio |
| Cinematography: | Federico Gutiérrez-Larraya |
| Production Companies: | --> |
| Distributors: | --> |
| Runtime: | 98 minutes |
| Country: | Spain Italy |
| Language: | Spanish |
The Tough One (Spanish: El aventurero de Guaynas) is a 1966 Spanish/Italian spaghetti Western directed by Joaquín Luis Romero Marchent and starring John Richardson.