Many characters in Harry Potter share a letter between their first and last name. Examples include:
- Bathilda Bagshot
- Bellatrix Black (last name later changed to Lestrange)
- Bertie Bott
- Bunty Broadacre
- Cho Chang
- Colin Creevey
- Dedalus Diggle
- Dudley Dursley
- Filius Flitwick
- Florean Fortescue
- Gellert Grindelwald
- Gregory Goyle
- Leta Lestrange
- Luna Lovegood
- Minerva McGonagall
- Pansy Parkinson
- Padma Patil and Parvati Patil
- Peter Pettigrew
- Piers Polkiss
- Poppy Pomfrey
- Quirinus Quirrell
- Severus Snape
- Mad-Eye Moody
- Madame Maxime
- William (Bill) Weasley
- The Hogwarts Ghosts:
- Nearly-Headless Nick
- The Fat Friar
- The Bloody Baron
- Moaning Myrtle
- Peeves the Poltergeist
- The founders of Hogwarts:
- Godric Gryffindor
- Helga Hufflepuff
- Rowena Ravenclaw
- Salazar Slytherin.
- Fantastic Beasts:
- Hungarian Horntail
- Swedish Shortsnout
- Quidditch teams:
- Tutshill Tornadoes
- Appleby Arrows
- Ballycastle Bats
- Caerphilly Catapults
- Falmouth Falcons
- Holyhead Harpies
- Kenmare Kestrels
- Montrose Magpies
- Pride of Portree
- Wigtown Wanderers
- Wimbourne Wasps
- Places:
- Malfoy Manor
- The Ministry of Magic
- The Shrieking Shack
- Weasleys' Wizard Wheezes
- The Forbidden Forest
- The Whomping Willow
- The Room of Requirement
- The Hog's Head
- The Magical Menagerie
- Objects:
- Bertie Bott's every-flavour Beans
- Polyjuice potion
- Extendable Ears
- Skiving Snackboxes
- Nosebleed Nougat
- Fainting Fancies
- Puking Pastille
- Fanged Frisbee
- Decoy Detonators
- Pygmy Puff
- Felix Felicis, colloquially known as "Liquid Luck"
- The Marauder's Map
- Mimbulus Mimbletonia
- Events:
- The Triwizard Tournament