Katie is a given name that can refer to:
- Katie Bell, a chaser on the Gryffindor Quidditch team in the 1990s
- Katie Killick, a witch reported missing in 1997
- Katie Rayknolls, a Slytherin student at Hogwarts School of Witchcraft and Wizardry in the 1720s
Behind the scenes[]
Real-world individuals with the given name Katie include:
- Katie Amber Duff, the actress who portrayed a Hogwarts student in the film adaptation of Harry Potter and the Philosopher's Stone
- Katie Botham, the actress who portrayed a Hogwarts the film adaptation of Harry Potter and the Philosopher's Stone
- Katie Dorrington, the actress who played a Hogwarts student in the film adaptation of Harry Potter and the Goblet of Fire
- Katie Head, the actress who potrayed an orphan at Wool's Orphanage in the film adaptation of Harry Potter and the Half-Blood Prince
- Katie Healy, the actress who portrayed a Student in the film adaptation of Harry Potter and the Philosopher's Stone, the film adaptation of Harry Potter and the Chamber of Secrets, and the film adaptation of Harry Potter and the Prisoner of Azkaban
- Katie Kreisler, the actress who portrayed an ensemble character in the Broadway Lyric Theatre production of Harry Potter and the Cursed Child
- Katie Leung, the actress who portrayed Cho Chang in the Harry Potter films
- Katie Novak, the actress who played a School friend in the film adaptation of Harry Potter and the Order of the Phoenix
- Katie O'Connor, the actress who portrayed an extra in the film adaptation of Harry Potter and the Half-Blood Prince
- Katie Rosedale, the actress who portrayed a Slytherin student in four of the films
- Katie Ryerson, the actress who portrayed Polly Chapman, Myrtle Warren, and Lily J. Potter in the Toronto Ed Mirvish Theatre production of Harry Potter and the Cursed Child
- Katie Purvis, the actress who played a goblin in the film adaptation of Harry Potter and the Philosopher's Stone