Elena Fiori is a mysterious young girl who appeared in Fullmetal Alchemist: Prince of the Dawn and Fullmetal Alchemist: Daughter of the Dusk.

She befriends Alphonse Elric, and has a crush on him; it is also revealed she is Claudio Rico's younger sister. Elena has a mysterious tattoo on her chest and attempts to stop her brother and Petr Hildebrand's planned terrorist attack on Central; Claudio tricks her, using her soul, but realizes his mistake.

In the end, she is saved by Alphonse, the only one who truly cared for her. She also appeared in bonus chapters of manga.