Just like our Muggle world, the wizard world is full of creatures. Some creatures that we have got in Britain are illegal but others aren't. The MOM regulates all the beasts (creatures that cannot understand what is been said to them) that can be found in Britain and gives them a classification depending on how dangerous they are. This ranges from 1-5 with 5 been the most dangerous.

Muggles are kept from discovering these creatures through either Muggle-repelling charms, unplottable land where reservations can go, disillusionment charms, memory charms or in a worst case scenario, the use of the Office of Misinformation.

Here are some creatures (includes beasts, beings and spirits) that you might encounter on your travels around the wizarding world:

• 3 Headed Dogs - Are very fierce but can be calmed down by music.
• Acromantula - Known wizard killer, rates 5 on MOM scale. Has 8 eyes and is extremely large. Originates from Borneo but known to be living in Forbidden Forrest at Hogwarts. Capable of human speech.
• Augery - Native of UK, are safe and can be used as a rain forecaster.
• Basilisk - Rates 5 on scale. Created by a chicken egg hatched underneath a toad. Brilliant green in colour it can reach lengths of up to 50 feet. Creation of the Basilisk has been illegal since Medieval times. Can only be controlled by Parselmouths.
• Billywig - Native to Australia. Been stung by one causes you to levitate.
• Bowtruckle - Tree guardian made of twigs and branches. Eats insects and is shy but very protective of its tree.
• Blast-ended skewets - Hagrid's creation from two separate species of animals. Seems to like human flesh to eat and never stops growing. Their tails may explode off their body at any given notice.
• Boggart - Nobody knows the true form of a Boggart because it takes on the shape of whatever you fear the most. It is easily confused.
• Bundimun - World-wide beast that feeds on dirt and infests houses.
• Cats - Are loving and normally gentle creatures. Some cats are cleverer than others and can sense evil ( see Kneazle) such as Hermione's cat Crookshanks.
• Centaurs - Star gazers and do not often interfere with what the stars tell them unless there is an extreme event that must be stopped. They dwell in forests, are extremely intelligent and can speak.
• Chimaera - Rare Greek monster rated 5 by the MOM.
• Chizpurfle - Small parasites attracted by magic. Attack any magical objects.
• Clabbert - Cross-between monkey and frog originating from South America. Can sense danger.
• Crup - Resembles a Jack Russell. Can be seen in Muggle World as long as its tail is severed.
• Demiguise - Found in Far East. Can make itself invisible when threatened.
• Diricawl - Known to Muggles as a dodo who they think is extinct. It is actually the Diricawl who can vanish and appear elsewhere.
• Doxy - Often mistaken for a fairy. Has sharp venomous teeth.
• Dragons - Most famous magical beast. Female bigger than male, rated 5 on MOM scale. Have highly magical properties. Ten pure-breed dragons are Antipodean Opaleye, Chinese Fireball, Common Welsh Green, Hebridean Black, Hungarian Horntail, Norweigan Ridgeback, Peruvian Vipertooth, Romanian Long-Horn, Swedish Short-Snout and Ukrainian Ironbelly.
• Dugbog - Marsh-dwelling creature that feeds on Mandrakes. Found in Europe and USA.
• Erkling - Eats children.
• Fairy - Decorative creature, very vain but cannot speak.
• Firecrab - Native to Fiji. Can be kept as pets but need a license.
• Flobberworms - The most boring creatures apparently in the wizarding world. They don't do very much and don't need a lot of attention. Can eat any vegetation to survive.
• Fwooper - It's song will drive you to insanity.
• Ghoul - Not dangerous and often inhabits wizard family homes or even Muggle homes.
• Giants - These people are thought to be the most vicious and cruel in the wizarding world and they were forced into hiding in the mountains. There are only about 70/80 giants left but at one point there were 100s of tribes. The Gurg is the giant leader but can easily be replaced as although there are few left, they fight and kill one another.
• Glumbumble - Found in Northern Europe and feeds on nettles.
• Gnomes - Often found in back gardens and have a sharp set of teeth on them. Can be flung easily and they love it.
• Goblins - Run the Gringotts bank. You'd be a fool to mess with one. They do not like wizards that have taken goblin-made treasures, and deeply mistrust wizards.
• Graphorn - Dangerous creature but is useful as potion ingredients.
• Griffin - Fierce but can be befriended. Originated from Greece and feeds on raw meat.
• Grindylow - Water demon that is aggressive towards Muggles and Wizards.
• Hippocampus - Has the head of a horse and the hindquarters and tail of a fish.
• Hippogriff - Magical creature that has the best manners. Never insult one and always bow before approaching it or suffer the consequences. Native to Europe.
• Horklump - Gnomes like to eat this creature that looks like a mushroom.
• Inferi - Inferi are dead bodies that have been reanimated by Dark magic to do the bidding of a witch or wizard.
• Imp - Only found in UK. Have slapstick sense of humour.
• Jarvey - Looks like an overgrown ferret but can talk. Likes to pursue gnomes.
• Jobberknoll - Silent bird up until death where at this point it regurgitates every sound it has heard backwards. Used in truth serums.
• Kappa - Japanese water demon that feeds on human blood.
• Kelpies - Lives in water. Most famous kelpie is the Loch Ness Monster.
• Knarl - Usually mistaken for a hedgehog, is a vandal.
• Kneazle - Cat-like creature that can detect evil in others.
• Leprechaun - Found only in Ireland. Have a reputation as been pranksters and can produce authentic looking gold that disappears after several hours.
• Lethifold - Rare and found in tropical climates. Kills victims in their sleep.
• Lobalug - Merpeople use this as a weapon.
• Mackled Malaclaw - If bitten by one, it makes its victim be unlucky for several weeks. Looks like a lobster.
• Manticore - Highly dangerous Greek beast. Sting causes instant death.
• Merpeople - Mysterious sea dwellers who speak Mermish.
• Moke - Has ability to shrink, found in UK.
• Mooncalf - Shy creatures, creators of corn circles in Muggle World by dancing.
• Murtlap - When eaten promote resistance to jinxes and curses.
• Nifflers - Useful little things for hunting out treasure of value. They use their nose to dig under ground. They live about 20 feet below ground level in lairs and can be affectionate.
• Nogtail - Causes havoc to farms.
• Nundu - MOM rating 5, argued as the most dangerous beast in the world.
• Occamy - Found in Far East and India. Is very aggressive.
• Owls - Useful and loyal pets that deliver your mail for you.
• Phoenix - Phoenix song encourages courage and its tears have healing powers. Lives to an immense age as it is regenerated.
• Pixie - Found in Cornwall, England. Electric blue and mischievous.
• Plimpy - Nibbles feet and clothes of swimmers, lives in water.
• Pogrebin - Russian demon that follows humans and then devours them.
• Porlock - Guards horses.
• Puffskin - Childhood pet of wizarding children. Eats bogies.
• Pygmy Puffs - A minature puffskin
• Quintaped - Only found on Isle of Dear in Scotland. Legend has it that two clans who hated each other lived on the island. One clan turned the other into this monster so the other clan ate them all but there were no wizards left to turn them back to humans!
• Ramora - Guardian of seafarers.
• Rats - Some do have magical properties but most are just the same as Muggle rats.
• Red Cap - Live where human blood has been spilt upon the ground. Dangerous to Muggles.
• Re'em - Blood gives immense strength.
• Runespoor - Three-headed serpant whose eggs produces high mental ability.
• Salamanders - Fire dwelling lizard that eats flames.
• Sea Serpernt - Live in the sea.
• Shrake - Viscous towards Muggle fishermen.
• Snidget - Once used as the Golden Snitch in Quidditch where it nearly became extinct.
• Sphinx - Talks in puzzles and riddles. If you get the answer wrong, it will become dangerous.
• Streeler - Giant snail that changes colour.
• Tebo - Used for protective shields and clothing.
• Thestrals - Fleshless creatures with their black coats clinging to their visible skeletons. Can only be seen by those who have seen death. They have dragon-like heads with black leathery wings and an amazing sense of direction that can take the rider anywhere they ask. Superstition says they are unlucky but it is only because not everyone understands the,/ They have a Ministry classification of "dangerous."
• Toads - Once a popular pet in the wizarding world but not any more.
• Trolls - Viscous creatures that are rather stupid as well. Three types are mountain, river and forest trolls.
• Unicorns - Beautiful animals that are favourites with the girls. Generally avoids humans.
• Vampires - Approach with silver bullets, stakes and plenty of garlic if you want to survive a vampire.
• Veela - The most beautiful creatures that will keep you mesmerised permanently.
• Werewolf - Have a bad name associated with them and are harmless when they are in wolf form if kept under lock and key. Remember that werewolves are people more than they are wolves. However, some werewolves, such as Greybank, have taken to killing humans, even when the moon is not full.
• Winged Horse - See Thestral
• Yetis - Lives up in the snow covered mountains.
• Zombies - Undead creature that is hard to kill.