Isobel is a given name that can refer to:
- Isobel MacDougal, a Ravenclaw student at Hogwarts School of Witchcraft and Wizardry in the 1990s
- Isobel McGonagall, a witch and the mother of Minerva, Malcolm and Robert McGonagall Jr.
Behind the scenes
Real-world individuals with the given name Isobel include:
- Isobel Middleton, an actress who provided several voices for video game adaptation of Harry Potter and the Order of the Phoenix