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| Seward Trainer | |
| Aliases: | Doctor Seward Trainer |
| Continuity: | Marvel Universe |
| Notability: | Supporting character |
| Type: | Scientist |
| Gender: | Male |
| Race: | Human |
| Location: | Rachel, Vermont |
| Relatives: | Carolyn Trainer |
| Status: | Deceased |
| First: | Spider-Man #54 |
Seward Trainer is a fictional scientist and a supporting character featured in comic books published by Marvel Comics. He is associated with the Spider-Man line of titles and first appeared in Spider-Man #54 in January, 1995.