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| Duckworld | |
| Continuity: | Marvel Universe |
| Aliases: | Earth-47920 Earth-791021 |
| Category: | Planet |
| Residents: | Duckworldians; Howard the Duck |
| 1st appearance: | Adventure Into Fear #19 |
Duckworld is a fictional planet featured in comic books published by Marvel Comics. The location relates to the character of Howard the Duck and first appeared in Adventure Into Fear #19 in December, 1973. The planet is characterized by its indigenous race of evolved animals.