As a student overall? Probably Hermione. Severus Snape is greater genius than her, no doubt, but those experiment and spells needed time to be done. And all those book outside of school one's.
By knowledge, Hermione Granger is the smartest and should be easily able to defeat Voldemort with her spells. How is a wizard's power calculated in the Harry Potter series? Could adult Lord Voldemort remove the underage magic trace of a witch?
No. Hermione might be as good at memorization as Dumbledore, or better, but Dumbledore is miles beyond her in other ways. Dumbledore is smart enough to use what he knows in brilliant ways. Hermione isn't an idiot, but she's just decent with what she knows, although what she knows is a lot.
As you know, Hermione was the smartest in the trio. But she was book smart, she could memorize things easily, and she studies a lot. She kept herself educated. Harry has a brave personality, and is more street smart.
Tom Riddle/Voldemort
Professor Dumbledore once said that Tom Riddle, a.k.a. Lord Voldemort, a.k.a. "He Who Must Not Be Named" (Ralph Fiennes/Hero Fiennes Tiffin/Christian Coulson), was the most brilliant student that Hogwarts has ever known.
If we're going by academic grades, then Draco Malfoy. Draco was the second top in Harry's class, placing right behind Hermione Granger.
She is also the first one of her age to be able to cast non-verbal spells. Hermione is a competent duellist – Rowling has stated that during the first three books Hermione could have beaten Harry in any magical duel, but by the fourth book Harry had become so good at DADA that he would have defeated Hermione.
Dumbledore is undoubtedly the smartest character in the Harry Potter universe, if by 'smartest', one means the greatest intellect.
Throughout the Harry Potter series, Albus Dumbledore, the beloved Headmaster of Hogwarts, proved time and time again that he was the smartest hero of the Wizarding World.
Harry's other best friend, the bookish and kind Hermione Granger can't be beaten in the classroom. Harry recognizes her as his year's best student and even said so at some point. But while Hermione can ace any test, she can't quite keep up with Harry on the battlefield.
Harry may not be stronger than Dumbledore, but Hermione? Hermione could beat Dumbledore any day if she wanted to. She's one of the most brilliant minds of her generation; like any good Gryffindor, she's brave, loyal, and strong.
Headmaster of Hogwarts throughout most of the Harry Potter series, it is safe to say that Dumbledore is the most powerful professor at Hogwarts. With his Elder wand, Dumbledore managed to get away both times he was threatened imprisonment at Azkaban. He could also duel Voldemort and hold his ground.
Albus Dumbledore
Did you even need to ask? Albus Dumbledore is arguably the G.O.A.T of the wizarding world, and it was evident from incredibly early on in his childhood that he was intellectually gifted, especially when it came to magic (luckily he was a wizard).
Michael Kearney - (IQ - 200–325)
He is known for setting world records as the youngest man to graduate and teach at the university, as a teenager and with an IQ between 200 and 325. He completed his bachelor's degree at the University of South Alabama, USA, at age 10.
Draco must have done a lot of experimenting, research, and difficult magic to fix that cabinet. Although Harry would never admit it, Draco is obviously an intelligent and talented wizard, perhaps one of the smartest in his Hogwarts year.
Evangelos Katsioulis: IQ 198
With a score of 198, Evangelos Katsioulis, MD, MSc, MA, PhD, has the highest tested IQ in the world, according to the World Genius Directory. The Greek psychiatrist also has degrees in philosophy and medical research technology.
Catelyn DID swear an oath to Walder. But, then, it's pretty dramatic to go and have the woman (and her family) slaughtered. Family drama aside, DAMN. This means ARGUS FILCH KILLED HERMIONE'S MOM!
Harry and Draco were pretty much neck-and-neck when it comes to dueling and wand-related stuff. It was only until Harry got a hold of Snape's diary and channeled his Slytherin tendencies that he was able to win against Malfoy. As a result, he nearly killed Malfoy in The Half-Blood Prince.
No ,Harry was not powerful than Dumbledore. Dumbledore had single-handedly defeated Grindelwald,the dark Lord of their days, while Grindelwald had the Elder wand. This shows that Dumbledore is powerful.
Based on Harry Potter lore, and an article by The Healthy Journal, Draco's signature spell is a N.E.W.T standard spell, The Protean Charm.
1 Hermione Granger Is The Smartest Witch Of Her Age And The Strongest Hogwarts Student In The Series.
Hermione Granger
Hermione received ten out of twelve O.W.L.s in her fifth year. She received top marks in every subject except for Defense Against the Dark Arts. Harry received an 'O' in this exam, and it is the only one he did better at than Hermione.