We don't know whether JKR is hinting at something with all these nose references, or if she just likes noses! Supposedly, in ancient Rome, it was considered a sign of leadership to be born with a crooked nose. Could that mean anything? Big thanks to RoCkYz21 for compiling most of this list!
His blue eyes were light, bright, and sparkling behind half-moon spectacles and his nose was very long and crooked, as though it had been broken at least twice. This man's name was Albus Dumbledore.
Harry unwrapped his Chocolate Frog and picked up the card. It showed a man's face. He wore half-moon glasses, had a long, crooked nose, and flowing silver hair, beard, and mustache. Underneath the picture was the name Albus Dumbledore.
Harry's whole body went numb. Dumbledore was looking unusually grave. He stared down his very crooked nose at them, and Harry suddenly found himself wishing he and Ron were still being beaten up by the Whomping Willow.
The tip of Dumbledore's long, crooked nose was barely an inch from Mrs. Norris's fur. He was looking at her closely through his half-moon spectacles, his long fingers gently prodding and poking.
Dumbledore took the diary from Harry and peered keenly down his long, crooked nose at its burnt and soggy pages.
Professor Dumbledore, though very old, always gave an impression of great energy. He had several feet of long silver hair and beard, half-moon spectacles, and an extremely crooked nose.
He amused himself for a moment, picturing Dumbledore, with his long silver beard, full length wizard's robes, and pointed hat, stretched out on a beach somewhere, rubbing suntan lotion onto his long crooked nose.
Dumbledore made a small noise of dissent through his long, crooked nose.
His long silver beard and hair gleamed in the torchlight as he drew level with Harry and looked up at Fudge through the half-moon spectacles that rested halfway down his very crooked nose.
[Harry] put [his glasses] on and raised his head a little to find Dumbledore's crooked nose inches from his own.
Half-moon spectacles were perched on his crooked nose, and he was wearing a long black traveling cloak and a pointed hat.
"It is a long time since my last visit," said Dumbledore, peering down his crooked nose at Uncle Vernon. "I must say, your agapanthus are flourishing."
Harry stared into the whitened face he knew so well, at the crooked nose and half-moon spectacles, and did not know what to do.
Harry reached out, straightened the half-moon spectacles upon the crooked nose, and wiped a trickle of blood from the mouth with his own sleeve.
Dumbledore was slumbering in a golden frame over the desk, his half-moon spectacles perched upon his crooked nose, looking peaceful and untroubled.
"And then, the boy would return to Hogwarts, where he is under the crooked nose of that Muggle-loving fool from morning until night. So how could I take him?"
Professor Quirrell, in his absurd turban, was talking to a teacher with greasy black hair, a hooked nose, and sallow skin.
Hook-nosed and menacing, Professor Snape stepped out, his eyes flashing at Neville.
"Mr. Moony presents his compliments to Professor Snape, and begs him to keep his abnormally large nose out of other peoples' business."
Harry spun around. There, his black robes rippling in a cold breeze, stood Severus Snape. He was a thin man with sallow skin, a hooked nose, and greasy, shoulder-length black hair, and at this moment, he was smiling in a way that told Harry he and Ron were in very deep trouble.
Snape approached their table, stared down his hooked nose at the roots, then gave Ron an unpleasant smile from beneath his long, greasy black hair.
On Professor Sinistra's other side was the sallow-faced, hook-nosed, greasy-haired Potions master, Snape - Harry's least favorite person at Hogwarts.
Harry's loathing of Snape was matched only by Snape's hatred of him, a hatred which had, if possible, intensified last year, when Harry had helped Sirius escape right under Snape's overlarge nose - Snape and Sirius had been enemies since their own school days.
"Please, sir, I'm supposed to take Harry Potter upstairs." Snape stared down his hooked nose at Colin, whose smile faded from his eager face.
In the very centre of the group Harry saw the dark, greasy-haired head and prominent nose of his least favourite teacher at Hogwarts, Professor Snape.
The surface of Hermione's potion, however, was a shimmering mist of silver vapour, and as Snape swept by he looked down his hooked nose at it without comment ...
It was not until the glowing yellow light was ten feet away from them, and had pulled off his Invisibility Cloak so that he could be seen, that he recognized, with a rush of pure loathing, the uplit hooked nose and long, black, greasy hair of Severus Snape.
Trapped, with Slughorn's arm around his shoulders, Snape looked down his hooked nose at Harry, his black eyes narrowed. "Funny, I never had the impression that I managed to teach Potter anything at all."
"Fifty points each," said Professor McGonagall, breathing heavily through her long, pointed nose.
Professor McGonagall came hurrying into the dormitory in her tartan dressing gown, her glasses perched lopsidedly on the bridge of her bony nose.
Professor McGonagall gave a tiny sigh; Harry saw the nostrils of her sharp nose flare.
Madam Pince's Nose
They waited, and a moment later the vulturelike countenance of Madam Pince appeared around the corner, her sunken cheeks, her skin like parchment, and her long hooked nose illuminated unflatteringly by the lamp she was carrying.
Mad-Eye Moody's Nose
[His face] looked as though it had been carved out of weathered wood by someone who had only the vaguest idea of what human faces are supposed to look like, and was none too skilled with a chisel. Every inch of skin seemed to be scarred. The mouth looked like a diagonal gash, and a large chunk of the nose was missing.
Mad-Eye Moody was sniffing at a chicken-leg with what remained of his nose ...
Opposite Harry, Tonks was entertaining Hermione and Ginny by transforming her nose between mouthfuls. Screwing up her eyes each time with the same pained expression she had
worn back in Harry's bedroom, her nose swelled to a beak-like protuberance that resembled Snape's, shrank to the size of a button mushroom and then sprouted a great deal of hair from
each nostril. Apparently this was a regular mealtime entertainment, because Hermione and Ginny were soon requesting their favourite noses.
I mean, Tonks is okay-looking when she isn't doing stupid things to her hair and her nose, but..."
Peter Pettigrew's Nose
His skin looked grubby, almost like Scabbers's fur, and something of the rat lingered around his pointed nose and his very small, watery eyes.
The man crept, hunchbacked, down the last few steps and moved into the room. He had small, watery eyes, a pointed nose, and wore an unpleasant simper.
The creature slipped off the bed and bowed so low that the end of its long, thin nose touched the carpet. Harry noticed that it was wearing what looked like an old pillowcase, with rips for arm-and-leg holes.
The house-elf's goggling tennis ball eyes were peering at Harry through the darkness. A single tear was running down his long, pointed nose.
He sank into a deep bow so that his pencil-like nose brushed the threadbare surface of the hearthrug and Hedwig gave an indignant hoot and fluttered on to the arm of Harry's chair.
The tiny creature looked up and stretched its fingers, revealing enormous brown eyes and a nose the exact size and shape of a large tomato. It wasn't Dobby - it was, however, unmistakably a house-elf, as Harry's friend Dobby had been. Harry had set Dobby free from his old owners, the Malfoy family.
Kreacher and Grimmauld Place House-Elves' Noses
Pressing her finger to her lips, she led him on tiptoe past a pair of long, moth-eaten curtains, behind which Harry supposed there must be another door, and after skirting a large umbrella
stand that looked as though it had been made from a severed troll's leg they started up the dark staircase, passing a row of shrunken heads mounted on plaques on the wall. A closer
look showed Harry that the heads belonged to house-elves. All of them had the same rather snout-like nose.
[Kreacher's]eyes were a bloodshot and watery grey and its fleshy nose was large and rather snoutlike.
At the sight of Sirius, Kreacher flung himself into a ridiculously low bow that flattened his snoutlike nose on the floor.
The gloomy house seemed warmer and more welcoming all of a sudden; even Kreacher looked less ugly as he poked his snoutlike nose into the kitchen to investigate the source of all the noise.
There was a loud crack, and a house-elf appeared, with a snout for a nose, giant bat's ears, and enormous bloodshot eyes, crouching on the Dursleys' shag carpet and covered in grimy rags.
She pointed at the last and youngest of her sons. He was tall, thin, and gangling, with freckles, big hands and feet, and a long nose.
And so he tried to imagine his other best friend, Ron Weasley's, reaction, and in a moment, Ron's red hair and long-nosed, freckled face seemed to swim before Harry, wearing a bemused expression.
Ron, he saw, was now holding Hermione and stroking her hair while she sobbed into his shoulder, tears dripping from the end of his own long nose.
Cho Chang's Nose
[Harry] could have counted the freckles on [Cho's] nose.
Viktor Krum's Nose
Viktor Krum was thin, dark, and sallow-skinned, with a large curved nose and thick black eyebrows. He looked like an overgrown bird of prey. It was hard to believe he was only eighteen.
Karkaroff beckoned forward one of his students. As the boy passed, Harry caught a glimpse of a prominent curved nose and thick black eyebrows. He didn't need the punch on the arm Ron gave him, or the hiss in his ear, to recognize that profile.
Cedric and his parents were just inside the door. Viktor Krum was over in a corner, conversing with his dark-haired mother and father in rapid Bulgarian. He had inherited his father's hooked nose.
Cedric Diggory's Nose
Then there was the fact that Cedric looked the part of a champion so much more than he did. Exceptionally handsome, with his straight nose, dark hair, and gray eyes, it was hard to say who was receiving more admiration these days, Cedric or Viktor Krum.
Marietta Edgecombe's Nose
Marietta gave a wail and pulled the neck of her robes right up to her eyes, but not before everyone had seen that her face was horribly disfigured by a series of close-set purple pustules that had spread across her nose and cheeks to form the word 'SNEAK'.
Neville's Grandmother's Nose
"He's a good boy," she said, casting a sternly appraising look down her rather bony nose at Neville, "but he hasn't got his father's talent, I'm afraid to say."