Nina is a given name that can refer to:
- Nina Chibbar, a Gryffindor student at Hogwarts School of Witchcraft and Wizardry in the 1990s
Behind the scenes
Real-world individuals with the given name Nina include:
- Nina Voelker, the actress who portrayed Wendy Slinkhard in the film adaptation of Harry Potter and the Half-Blood Prince
- Nina Young, the actress who portrayed The Grey Lady in the Harry Potter films