 | |
| Walt Arnold | |
| Aliases: | Coach Walt Arnold |
| Continuity: | Smallville |
| Notability: | Antagonist |
| Type: | Football coach |
| Gender: | Male |
| Race: | Human |
| Location: | Smallville High School, Smallville, Kansas |
| Status: | Deceased |
| Died: | 2001 |
| First: | "Hothead" |
| Actor: | Dan Lauria |
Walt Arnold is a fictional sports coach and a minor antagonist featured on the superhero fantasy series Smallville. He was played by actor Dan Lauria and appeared in the third episode from season one titled, "Hothead".