"Anyone can speak Troll. All you have to do is point and grunt."
—The Troll language[src]

A troll is a magical beast of prodigious strength and immense stupidity. In fact, they are so synonymous with stupidity that they actually have a wizarding exam failing grade named after them. Trolls are grouped in the taxonomical genus Troglodytarum.[1] Trolls possess rudimentary magic, but it is not known how they apply it.


Physical appearance

Trolls generally reach a height of about twelve feet and weigh up to a tonne. Troll whiskers have magical properties, and are sometimes used as wand cores. Their feet have two toes, both with giant toenails.


They are dangerously violent and incredibly aggressive, and they engage in unpredictable behaviour, comparable to giants. They are also incredibly low in intelligence, of which giants seem to have more. Trolls are particularly attracted to unpleasant smells, such as Dungbombs.[2]


Trolls, similar to Acromantulas, have a taste for human flesh. They enjoy it raw, but are not fussy about what they eat. Trolls are also fond of fish.[3]

Society and Culture

Troll language is supposedly nothing more than simple grunts that only Trolls seem to be able to interpret, though skilled magical multi-linguists such as Barty Crouch can understand them. Trolls understand only a limited number of Human words, and some smarter ones can be skilfully trained as security trolls. Professor Quirrell had a gift for communicating with trolls, and then used it to set one loose in Hogwarts School of Witchcraft and Wizardry in 1991 in an effort to steal the Philosopher's Stone.

Mountain trolls have been known to tame and ride Graphorns, or at least try to ride them. Graphorns don’t seem to be very keen on the idea.[4]


"I went looking for the troll because I — I thought I could deal with it on my own — you know, because I've read all about them."
—Hermione Granger lying after encountering a Troll[src]
Trolls originated in Scandinavia, but are now found all across Europe.[4]

Trolls are not recognised as magical beings, but are instead classified as beasts by the Department for the Regulation and Control of Magical Creatures of the British Ministry of Magic, most likely due to their aggressive natures.[4] Pierre Bonaccord, the first Supreme Mugwump of the International Confederation of Wizards, wanted to stop troll-hunting and give them rights, but his appointment to that office was contested by Liechtenstein, since they were having problems with a tribe of very dangerous mountain trolls at the time.[5]

Artemius Lawson was an outspoken advocate for the strict restraint of trolls. He thought it was wrong to allow them to roam free, stating that "they were creatures who weighed a ton, but had brains the size of a bogey".

The Black family kept an umbrella stand made out of a troll's leg in their front hall.[6]

A Troll was Quirrell's contribution to guarding the Philosopher's Stone in the Underground Chambers, during the 1991–1992 school year at Hogwarts School of Witchcraft and Wizardry.[7]

Professor Quirrell, to create a diversion so he could go after the Philosopher's Stone, let a mountain troll into the castle on Hallowe'en, 1991. It wandered around the corridors until Harry Potter and Ron Weasley locked it in a girls' bathroom, only to realise soon after that Hermione Granger was also in that particular bathroom. With a  combination of using the Levitation Charm and "sheer dumb luck" (according to Minerva McGonagall), Ron managed to knock it by levitating its club and dropping it on its head, incapacitating it out and saving Hermione.[8]

Trolls participate in wizarding society to some extent; some witches and wizards make a career out of training security trolls. These were evidently a different type of troll than the mountain variety, since they seemed considerably more intelligent and less smelly. Dumbledore hired security trolls to guard the Fat Lady after Sirius Black attacked her. They spent all their time pacing the corridor in front of the Fat Lady's portrait, giving dirty looks to everyone who happened by and comparing the sizes of their clubs. They left at the end of the year, when Sirius was deemed to have left the country.

The wizarding author and celebrity Gilderoy Lockhart wrote about his supposed adventures with Trolls in his book Travels with Trolls, which was a mandatory Defence Against the Dark Arts textbook for his classes in that subject for the 1992–1993 school year when he was that year's Professor.[9] As Gilderoy Lockhart was in reality a dishonest con artist who fraudulently took the credit of the achievements of far braver wizards and witches, by erasing their memories of their deeds with the Memory Charm, Lockhart in reality had no actual experience with these creatures.[10]

During the Calamity, several Trolls started randomly appearing throughout the Wizarding world guarding various magical Confoundables, with volunteer members of the Statute of Secrecy Task Force having to incapacitate them with spells such as the the Ebublio Jinx and the Knockback Jinx, in order to overpower the Confoundables and return them to their rightful place.[11]


There are four different types of Troll, each with its own highly unique set of physical differences.

The mountain troll is the largest and most violent of the various troll species. It stands twelve feet tall, with grey skin, a lumpy body, and flat horny feet. It exudes a powerfully awful smell, “a mixture of old socks and the kind of public toilet no one seems to clean.” Its nose is full of what looks like lumpy, grey glue: troll bogeys.[8]

The forest troll has pale-green skin and straggly hair.[4] This breed of troll is native to forests or woodlands, some may even live in the Forbidden Forest.[12]

The river troll has hairy purple skin and short horns. It is often found lurking under bridges.[4] They are often found lurking beneath bridges or in the middle of rivers.

A sub-type is the Troll of Nadroj, a kind of troll with disproportionate hands.

Part-troll are beings with some, but not a total, amount of troll heritage or blood, as well as part human blood.

See also

Behind the scenes


The troll as a Lego minifigure

  • The troll is a creature from Norse mythology. Though sometimes depicted as being little different from humans, later Scandinavian folklore began to increasingly depict them as ugly, stupid, and brutish, a depiction that has persisted into modern fantasy works.
  • In the Philosopher's Stone book and PS1/GBC game, there is a room with a troll that belongs to Professor Quirrell. However, in the film, this scene was omitted.
  • In Fantastic Beasts and Where to Find Them, Ron Weasley draws a picture of a troll and describes Gregory Goyle as one.
  • In the video game adaptation of Harry Potter and the Prisoner of Azkaban, security trolls are made in the last parts of the game. They are shown to be watching the library, and will end the game if they catch the player. To distract them, Ron must throw a Dungbomb around one. If close enough, the Troll will walk towards them. Humourously, when a Troll walks to a Dungbomb, they seem to lose sense of the player.
  • Harry Potter once speculated that Marcus Flint has some traces of Troll blood in him; however, this might be simply to insult Flint's stupidity and appearance.
    Screenshot 931
  • When Ron Weasley was captured by Snatchers in 1997, he told them he was Stan Shunpike, due to them not looking very intelligent, and even speculated that one of them might have been part-Troll, judging by his odour.
  • In LEGO Harry Potter: Years 1-4, if someone casts a spell at a security troll, they can create an expansive wave in self-defence.[13]
  • Troll whiskers may be used in wand cores, though they are considered inferior to the Supreme Cores.
  • There is some contradiction as to the ability of trolls to perform magic. In Fantastic Beasts and Where to Find Them, it states that trolls have no magic powers other than their naturally enhanced strength. However, one of the questions on the Wizards' Ordinary Magic and Basic Aptitude Test, when taken with information on the Patronus Charm from Wonderbook: Book of Spells, implies that both hags and trolls can use rudimentary magic.
  • After the details of the Sorting ceremony were revealed in 1991, Ron stated that he was going to kill his brother Fred, who had suggested that the test to get into Hogwarts involved wrestling a troll.
    Screenshot 933
  • Though often derided as stupid, trolls are obviously intelligent, or at least sapient, beings.  This is seen in their wielding of weapons, dressing themselves, and their attempts to domesticate other beasts (such as graphorns).  This indicates that trolls are early to mid Stone Age in terms of culture, and likely possess rudimentary intelligence. However, they were either not considered intelligent enough to understand the laws of the wizarding world or could not control their violence, as the Ministry of Magic did not grant them being status.


The Harry Potter Wiki has 89 images related to Troll.

Notes and references

Magical Creatures by classification
X Flobberworm · Horklump
XX Augurey · Bowtruckle · Chizpurfle · Clabbert · Diricawl · Fairy · Ghoul · Gnome · Grindylow · Imp · Jobberknoll · Mooncalf · Porlock · Puffskein · Ramora · Winged horse
XXX Ashwinder · Billywig · Bundimun · Crup · Doxy · Dugbog · Fire crab · Fwooper · Glumbumble · Hippocampus · Hippogriff · Hodag · Jarvey · Knarl · Kneazle · Leprechaun · Lobalug · Mackled Malaclaw · Moke · Murtlap · Niffler · Nogtail · Pixie · Plimpy · Pogrebin · Red Cap · Salamander · Sea serpent · Shrake · Streeler · Winged horse
XXXX Centaur · Demiguise · Erkling · Erumpent · Golden Snidget · Graphorn · Griffin · Hidebehind · Kappa · Kelpie · Merpeople · Occamy · Phoenix · Re'em · Runespoor · Snallygaster · Sphinx · Tebo · Thestral · Thunderbird · Troll · Unicorn · Winged horse · Yeti
XXXXX Acromantula · Basilisk · Chimaera · Dragon · Horned Serpent · Lethifold · Manticore · Nundu · Quintaped · Wampus cat · Werewolf
Albus Dumbledore-101-chocFrogCard Chocolate Frog Cards Bridget-wenlock-card-lrg
Gold cards

Armando Dippet · Albus Dumbledore · Barberus Bragge · Bertie Bott · Carlotta Pinkstone · Dzou Yen · Godric Gryffindor · Hermione Granger · Herpo the Foul · Helga Hufflepuff · Harry Potter · Montague Knightley · Phillipus von Hohenheim · Roderick Plumpton · Rowena Ravenclaw · Ronald Weasley · Salazar Slytherin

Silver cards

Alberic Grunnion · Alberta Toothill · Andros the Invincible · Artemisia Lufkin · Blenheim Stalk · Bowman Wright · Chauncey Oldridge · Circe · Cliodna · Crispin Cronk · Cyprian Youdle · Daisy Dodderidge · Derwent Shimpling · Donaghan Tremlett · Dunbar Oglethorpe · Dymphna Furmage · Elfrida Clagg · Felix Summerbee · Fulbert the Fearful · Gaspard Shingleton · Gideon Crumb · Glenda Chittock · Gondoline Oliphant · Gregory the Smarmy · Gwenog Jones · Honoria Nutcombe · Ignatia Wildsmith · Joscelind Wadcock · Kirley Duke · Laverne de Montmorency · Leopoldina Smethwyck · Maeve · Mirabella Plunkett · Mopsus · Morgan le Fay · Oswald Beamish · Sacharissa Tugwood · Thaddeus Thurkell · Thurkell brothers · Wendelin the Weird · Xavier Rastrick

Bronze cards

Adalbert Waffling · Almerick Sawbridge · Archibald Alderton · Balfour Blane · Beatrix Bloxam · Beaumont Marjoribanks · Bridget Wenlock · Burdock Muldoon · Cassandra Vablatsky · Celestina Warbeck · Cornelius Agrippa · Devlin Whitehorn · Dorcas Wellbeloved · Edgar Stroulger · Elladora Ketteridge · Ethelred the Ever-Ready · Flavius Belby · Gifford Ollerton · Glanmore Peakes · Glover Hipworth · Greta Catchlove · Grogan Stump · Gulliver Pokeby · Gunhilda de Gorsemoor · Havelock Sweeting · Hengist of Woodcroft · Heathcote Barbary · Herman Wintringham · Hesper Starkey · Jocunda Sykes · Justus Pilliwickle · Merlin · Merton Graves · Merwyn the Malicious · Miranda Goshawk · Mungo Bonham · Musidora Barkwith · Myron Wagtail · Newton Scamander · Norvel Twonk · Orsino Thruston · Perpetua Fancourt · Quong Po · Roland Kegg · Stoddard Withers · Tilly Toke · Uric the Oddball · Yardley Platt

Famous Vampires cards

Blodwyn Bludd · Vlad Drakul · Amarillo Lestoat · Carmilla Sanguina · Herbert Varney

Famous Hags cards

Babayaga · Malodora Grymm · Old Mother Hubbard · Cordelia Misericordia · Leticia Somnolens

Famous Giants cards

Bran the Bloodthirsty · Cyclops · Goliath · Morholt · Hengist of Upper Barnton

Famous Goblins cards

Alguff the Awful · Eargit the Ugly · Gringott · Ug the Unreliable · Urg the Unclean

Dragon cards

Common Welsh Green · Hebridean Black · Hungarian Horntail · Norwegian Ridgeback · Romanian Longhorn

Beast cards

Billywig · Bowtruckle · Doxy · Double-ended Newt · Giant Purple Toad · Giant Squid · Gnome · Gytrash · Imp · Kelpie · Manticore · Mountain Troll · Streeler · Phoenix · Unicorn

Defence Against the Dark Arts (D.A.D.A.)
D.A.D.A. at Hogwarts
Classroom 3C · Temporary Classroom · Hogwarts Turris Magnus · Teacher's Office · Storeroom · Staircase · Lesson Cup · Race Cup · Dumbledore's Army
Arsenius Jigger · Albus Dumbledore · Galatea Merrythought · Patricia Rakepick · Quirinus Quirrell · Gilderoy Lockhart · Remus Lupin · Bartemius Crouch Junior (as Alastor Moody) · Dolores Umbridge · Severus Snape · Amycus Carrow (as Dark Arts teacher)
The Dark Forces: A Guide to Self-Protection · Break with a Banshee · Gadding with Ghouls · Holidays with Hags · Travels with Trolls · Voyages with Vampires · Wanderings with Werewolves · Year with the Yeti · The Essential Defence Against the Dark Arts · Defensive Magical Theory · Dark Arts Defence: Basics for Beginners · Confronting the Faceless · Magical Drafts and Potions
Spells studied at Hogwarts under D.A.D.A.
Aqua Eructo Charm · Boggart-Banishing Spell · Counter-curses · Counter-jinxes · Counter-spells · Curse of the Bogies · Defensive Charms · Densaugeo · Deprimo · Disarming Charm · Everte Statum · Freezing Spell · Full Body-Bind Curse · Fumos Duo · Green Sparks · Hex-Breaker· Hex-deflection · Hex Zapper · Homorphus Charm · Human-presence-revealing Spell · Impediment Jinx · Knockback Jinx · Lacarnum Inflamari · Nonverbal spells · Patronus Charm · Red Sparks · Reductor Curse · Salvio hexia · Seize and Pull Charm · Shield Charm · Smokescreen Spell · Snake-Vanishing Spell · Stunning Spell · Tickling Charm · Tongue-Tying Curse · Trip Jinx · Verdimillious Charm · Verdimillious Duo Spell · Verdimillious Tria · Wand-Lighting Charm · Cruciatus Curse · Imperius Curse · Killing Curse
Creatures studied at Hogwarts under D.A.D.A.
Banshee · Boggart · Cornish Pixie · Dementor · Erkling · Ghost · Ghoul · Grindylow · Gytrash · Hag · Hinkypunk · Iguana · Imp · Inferius · Kappa · Nocturnal beasts · Red Cap · Snake · Troll · Vampire · Vampire bat · Werewolf · Yeti · Zombie
*Disclosure: Some of the links above are affiliate links, meaning, at no additional cost to you, Fandom will earn a commission if you click through and make a purchase. Community content is available under CC-BY-SA unless otherwise noted.

Fandom may earn an affiliate commission on sales made from links on this page.

Stream the best stories.

Fandom may earn an affiliate commission on sales made from links on this page.

Get Disney+