Despite Harry's extracurricular activities such as Quidditch, going to Hogsmeade, and repeatedly defeating the darkest wizard of all time, his primary focus is at Hogwarts. Hogwarts, like any other school, works to provide witches and wizards with viable assets that will help them in their career endeavors after their seventh and final school year. In order to determine their educational dexterity, they had to take tests known as the O.W.L.s in their fifth year and N.E.W.T.s in their seventh year.
Ordinary Wizarding Level (O.W.L) examinations are standardized tests that determine if a student can go on taking specific courses their few next years. Nastily Exhausting Wizarding Test or N.E.W.T.s are major determining factors in a witch or wizard obtaining their preferred line of work outside of Hogwarts. As much as people are willing to bet that Hermione is the best student, you might be surprised to see how well some of the others performed. Here are the best students at Hogwarts, ranked by their grades.
10 Cedric Diggory
Cedric may deserve a pass considering his sixth-year demise. He was actually a brilliant student in every sense of the word. Cedric is introduced in his fifth year as the Hufflepuff team captain and Seeker. Not only is he handsome, but Cedric also made Prefect. He is notably gifted, as seen in Harry Potter and the Goblet of Fire when he continuously passes each test in the Triwizard Tournament.
However, Cedric only received three O.W.L.s during his time at Hogwarts. Whether this is because of the career path he had lined up for himself or because he simply failed at the others, it seems like a pretty low amount considering his potential. Cedric, unfortunately, died before he could take his N.E.W.T.
9 Luna Lovegood
Luna also only is credited with obtaining passing grades in three O.W.L. courses. This seems surprising for a Ravenclaw, but again, you have to take the current events into consideration.
It is thought that she more than likely received a passing score for Care of Magical Creatures, considering she went on to be a Magizoologist. Luna also received O.W.L.s for Charms and Defense Against the Dark Arts.
8 Fred & George Weasley
Fred and George left Hogwarts during their sixth year, but not before taking their O.W.L.s The two Weasley twin both earned three passing grades each in Defense Against the Dark Arts, Charms, and Herbology.
This is less than half of the number of high grades that their older brothers received. However, considering the two managed to open up a very successful joke shop, their O.W.L.s essentially become a moot point.
7 Draco Malfoy
It's never really made clear just how seriously Draco took to his schoolwork. However, it can be presumed that he thought he could get by on the coattails for his father, with Snape there to remedy his grade if need be. Perhaps this is why Draco only has three O.W.L.s., including one in Transfiguration, Potions, and Defense Against the Dark Arts.
Draco Malfoy's sixth year is his most damaging year at Hogwarts to date. His focus in this school year falls heavily on his role as a Death Eater and his goal to find a way to get his comrades into Hogwarts undetected. More than likely, he never took his N.E.W.T.s.
6 Seamus Finnigan
Another Gryffindor whose terrible skills at Charms and Potions proceeds him, Seamus managed to scrape by with three O.W.L.s during his Hogwarts career. Believe it or not, Seamus actually received a passing grade for his Charms O.W.L., along with Transfiguration, and Defense Against the Dark Arts.
The latter of those is more likely to have been made possible thanks to Harry's tutoring for the D.A. He even manages to procure his own Patronus during the Battle of Hogwarts, which takes the form of a fox.
5 Neville Longbottom
Neville has always been reprimanded for his school grades. He has a hard time remembering things, as audiences are well aware of from Harry Potter and the Sorcerer's Stone, and he struggles to procure a simple Disarming Charm during his lessons for Dumbledore's Army. However, it might surprise Harry Potter fans to know that Neville passed four of his O.W.L exams.
Neville received passing grades in Transfiguration, Defense Against the Dark Arts, Charms, and Herbology. His "Acceptable" grade for Transfiguration, however, did not allow him to take N.E.W.T level courses. But, considering the Battle of Hogwarts took place in his seventh year, this would not have mattered and Neville never returned to take his N.E.W.T. He did briefly serve as an Auror before becoming the Herbology professor at Hogwarts.
4 Ron Weasley
Ron Weasley, who is always under the pressure to succeed as his older brothers Percy, Bill, and Charlie had done, received a total of seven O.W.L.s during his fifth year at Hogwarts. He passed every subject he took except for Divination and History of Magic, which were notoriously his and Harry's least favorite subjects.
Ron never returned for his seventh year to take his N.E.W.T.s. However, his sabbatical during his last year at Hogwarts was overlooked in favor of his defense against the Dark Lord, and Ron went on to become an Auror.
3 Harry Potter
Harry, who has always had an affection for a career as an Auror, has to obtain either an E or O in Charms, Defense Against the Dark Arts, Herbology, Potions, and Transfiguration in order to become one. Professor McGonagall had vouched to help Harry become an Auror, if only in spite of Professor Umbridge who thought Harry could never become one. Harry obtained seven O.W.L.s in his fifth year, deciding never to return for his N.E.W.T.s.
Harry failed the same subjects as Ron, though he actually fainted during his History of Magic O.W.L exam. None of this seems to matter anyway since he and Ron both become Aurors at the age of seventeen and Harry becomes the youngest Head of the Auror Office at the age of twenty-seven.
2 Hermione Granger
Hermione Granger, the brightest witch of her age, might be the top female contender for best students at Hogwarts, but she falls to the second slot. Hermione received ten out of twelve O.W.L.s in her fifth year. They are almost all marked as "O's" or top mark, 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. She also did not take O.W.L.s for Divination or Muggle Studies due to time restrictions.
Hermione, being the book-savvy witch that she is, returned to Hogwarts to take her N.E.W.T.s after the second wizarding war. Hermione went on to work for the Ministry of Magic in the Department for the Regulation and Control of Magical Creatures and the Department of Magical Law Enforcement. Around 2019, Hermione Granger became the Minister of Magic.
1 Percy Weasley
At the top of the list is, somewhat surprisingly, Percy Weasley. Percy always bragged about his grades and took to his positions as Prefect and Head Boy with pride. He received a total of twelve O.W.L.s and is one of only a handful of wizards to do so. He also graduated with perfect N.E.W.T.s.
Percy's brother Bill also received twelve O.W.L.s. It's been questioned how these two were able to take on all twelve studies considering Hermione tried to do this in her third year with the help of the Time Turner.