Diamond Tiara (voiced by Chantal Strand) is a character from My Little Pony: Friendship is Magic. She and her friend Silver Spoon are bullies to The Cutie Mark Crusaders (Apple Bloom, Sweetie Belle and Scootaloo) and they always be mean to them due to the fact that Apple Bloom and her friends don't have cutie marks yet.
- Diamond Tiara will become Jeffrey and Jaden's enemy in the Jeffrey, Jaden & Friends' meet Indiana Jones saga.
- She and Silver Spoon will appear with the villains in Jeffrey & Friends in Fantasmic!.
- Diamond Tiara will become Darkblade's enemy in Darkblade's Adventures of My Little Pony: Friendship is Magic. After that, she'll join the Scourge.
- Diamond Tiara will become Chase Suno's enemy in Chase Suno's Adventures of The Amazing Spider-Man 2.