Mayday Parker
| May Parker Spider-Girl | |
|---|---|
| May "Mayday" Parker as Spider-Girl,  as she appeared on the cover of The Amazing Spider-Girl #1 (December 2006). Art by Ron Frenz. | |
| Publication information | |
| First appearance | What If #105 (February 1998) | 
| Created by | Tom DeFalco (writer) Ron Frenz (artist) | 
| In-story information | |
| Alter ego | May "Mayday" Parker | 
| Species | Human mutate | 
| Place of origin | Queens, New York, Earth-982 | 
| Team affiliations | |
| Notable aliases | Spidey, Spider-Girl Red, Spider-Woman | 
| Abilities | 
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Spider-Girl (May "Mayday" Parker) is a superheroine appearing in American comic books published by Marvel Comics. She has been referred to as both Spider-Girl and Spider-Woman. The character appears in the MC2 universe. The character was created by Tom DeFalco and Ron Frenz as the teenage daughter of Peter Parker (Spider-Man) and Mary Jane Watson, and first appeared in What If #105 (February 1998). She later acquired her own ongoing comic book, Spider-Girl, written by DeFalco and drawn by Frenz and Pat Olliffe, which was the longest-running superhero book with a lead female character ever published by Marvel. The title was relaunched as The Amazing Spider-Girl, and later The Spectacular Spider-Girl.
The character made her cinematic debut in the 2023 feature film Spider-Man: Across the Spider-Verse, with an infant Mayday depicted as the daughter of Peter B. Parker and his universe's Mary Jane Watson.