Alexandra is a given name than can refer to:
- Alexandra Rokonski, a name carved into a wood panel in Trelawney's Divination Classroom
- Alexandra Walker, a witch charged with attempted robbery of Ollivanders Wand Shop
Behind the scenes
Real-world individuals with the given name Alexandra include:
- Alexandra Craig, played a Beauxbaton student and danced with Vincent Crabbe at the Yule Ball in the film adaptation of Harry Potter and the Goblet of Fire