* Roald Dahl's "Matilda": This is a popular children's novel, not a poem.
* Other poems featuring a character named Matilda: There may be poems out there with a character named Matilda, but they wouldn't be considered "the" Matilda poem. You might find some by searching online poetry databases or anthologies.
To help you find the specific poem you're looking for, could you provide more context? For example:
* Do you remember any lines from the poem?
* What is the general theme of the poem?
* Where did you encounter the poem? (e.g., a book, a website, a classroom)
With more information, I can give you a more accurate answer.