Siobhan (disambiguation)

Siobhan is a given name that can refer to:
 * Siobhan Templeton, a Hufflepuff student at Hogwarts inn the 1990s

Behind the scenes
Real-world individuals with the given name Siobhan include:
 * Siobhan Ellen Williams, an actress who appeared in Harry Potter and the Goblet of Fire (film) and Harry Potter and the Order of the Phoenix (film)