This is an index of characters introduced in Harry Potter and the Chamber of Secrets.
The order that the characters are seen or mentioned is from the American version of the book. In other languages, the order may or may not be different.
Chapter One: The Worst Birthday
| Mr Mason |  |
| Mrs Mason |  |
| Dobby |  |
Chapter Two: Dobby's Warning
| Mafalda Hopkirk |   |
Chapter Three: The Burrow
Chapter Four: At Flourish and Blotts
| Mr Borgin |   |
| Aged witch |   |
| Mr Granger |   |
| Mrs Granger |   |
| Dr Filibuster | |
| Bozo |   |
| Manager of Flourish and Blotts |
Chapter Five: The Whomping Willow
| Hetty Bayliss | |
| Angus Fleet |
Chapter Six: Gilderoy Lockhart
| Justin Finch-Fletchley's mother | |
| Colin Creevey |   |
| Mr Creevey | |
| Bandon Banshee | |
| Ogden | |
| Lockhart's pixies |   |
Chapter Seven: Mudbloods and Murmurs
| Gladys Gudgeon | |
| Veronica Smethley |
Chapter Eight: The Deathday Party
| Sir Patrick Delaney-Podmore | |
| Z. Nettles | |
| D.J. Prod | |
| Care of Magical Creatures salamander | |
| Portly ghost | |
| Myrtle Warren |   |
| Wailing Widow | |
| Ghosts unnamed |
Chapter Nine: The Writing on the Wall
| Mrs Skower | |
| Godric Gryffindor |   |
| Helga Hufflepuff |   |
| Rowena Ravenclaw |   |
| Salazar Slytherin |   |
Chapter Ten: The Rogue Bludger
| Transylvanian villager | |
| Unnamed Yeti | |
| Unnamed Vampire | |
| Wagga Wagga Werewolf |
Chapter Eleven: The Duelling Club
| Ernie Macmillan |   |
| S. Fawcett |   |
| Blood-Sucking Bugbear | |
| Aurora Sinistra |   |
Chapter Twelve: The Polyjuice Potion
| Fawkes |   |
| Penelope Clearwater |   |
| Millicent Bulstrode's cat |
Chapter Thirteen: The Very Secret Diary
| Auntie Mabel | |
| Lockhart's dwarfs | |
| Armando Dippet |   |
| Aragog |   |
| Myrtle's parents |
Chapter Fourteen: Cornelius Fudge
| Unidentified eleven Hogwarts Board of Governors members |
Chapter Fifteen: Aragog
| Mosag | |
| Forbidden Forest Acromantula colony |   |
Chapter Sixteen: The Chamber of Secrets
| Olive Hornby |
Chapter Seventeen: The Heir of Slytherin
| Serpent of Slytherin |   |
Chapter Eighteen: Dobby's Reward
- No new characters were introduced in this chapter.
See also
- Harry Potter and the Chamber of Secrets
- Harry Potter and the Chamber of Secrets (film)
- Harry Potter and the Chamber of Secrets (soundtrack)
- Harry Potter and the Chamber of Secrets (video game)
- Harry Potter and the Philosopher's Stone (character index)
- Harry Potter and the Prisoner of Azkaban (character index)
- Harry Potter and the Goblet of Fire (character index)
- Harry Potter and the Order of the Phoenix (character index)
- Harry Potter and the Half-Blood Prince (character index)
- Harry Potter and the Deathly Hallows (character index)