Eucomis

Petunia is a genus of flowering plants.

Petunia may also refer to:

Arts and entertainment

Petunia (film), a 2012 American independent film
"Petunia, the Gardener's Daughter", a song performed by Elvis Presley
Petunia Pig, a cartoon character
Aunt Petunia (disambiguation), several fictional characters, including Harry Potter's aunt
Joe and Petunia, characters from a series of public information films
Ms. Petunia, a ghost in the Nintendo game Luigi's Mansion
A character from Happy Tree Friends
A rabbit marionette created by ventriloquist Darci Lynne