Prefect

"What would we want to be prefects for? It'd take all the fun out of life."

—George Weasley.

A prefect at Hogwarts School of Witchcraft and Wizardry is a student who has been given extra authority and responsibilities by the Head of House and Headmaster. One male and one female student are chosen from each house in their fifth year to act as prefects. They would continue to be prefects in their sixth and seventh years until they leave school.

Thus, there are approximately six prefects per house and twenty-four prefects in the whole school at one time. The Head Boy and Head Girl may be chosen from among this number and may not be replaced. However, the Head Boy or Girl does not have to be a prefect.

The Weasley family is noted for having had several prefects among its sons — first Bill, next is Charlie, then Percy, and finally Ron. Percy in particular is known to have been mercilessly persecuted by his brothers Fred and George, who once bewitched his Prefect's badge to read "Pinhead", and were once quoted by Ron as having "always said that only prats become Prefects".

The Prefects chosen in 2015 Were Darius Stonewater and Victoire Weasley of Gryfindor Molly Weasley II and Hugh Silverstone of Ravenclaw Simon Cross and Charlotte Macavoy of Hufflepuff and Eric Laughalot and Grezelda Rowle of Slytherin

The Prefects chosen in 2016 Were Andrew Greening and Lana Roberts of Gryfindor Harriette Greig and Casey Korriman of Ravenclaw Ethan Humberston and Chloe Kennedy of Hufflepuff and Kyle Jenkins and Violet Pusey of Slytherin

The Prefects chosen in 2017 Were Michael Andrews III and Dominique Weasley of Gryfindor Jack Rivers and Emily Jenkins of Ravenclaw Robbie Belby and Lisa Colins of Hufflepuff and Bradford Birch and Ruby Runcorn of Slytherin

The Prefects chosen in 2018 Were Cody Jefferson and Aisling Goldenthorpe of Gryffindor Adrian Vowell and Katherine St. Ives of Ravenclaw Rupert Van Westle and Jacklyn Walters of Hufflepuff and Vinnie Warrington and Lisa Swann of Slytherin

The Prefects chosen in 2019 Were Miles Ogden and Phoebe Clarke of Gryfindor Amortentia Smith and Louis Weasley of Ravenclaw Mark Glover and Jesscia Hughes of Hufflepuff and Elliot Garseley (Replaced by Vincent Zhong in 2020) and Niemh Runcorn of Slytherin

The Prefects chosen in 2020 Were Danny Horner and Lucy Weasley of Gryfindor Frankie Fontana and Jane Goldstein of Ravenclaw Sean Richards and Danika Laurent of Hufflepuff and Cody Branstone and Vanessa Derrick of Slytherin

The Prefects chosen in 2021 Were Aurben Pauley and Rose Granger-Weasley of Gryfindor Samantha Davies and Trevor Goldstein of Ravenclaw Daniel Fincher and Abbie Colins of Hufflepuff and Juliana Bletchley and Karl Jenkins of Slytherin

The Weasley grandchildren out of them Victoire Weasley, Dominique Weasley, Louis Weasley, Molly Weasley II, Lucy Weasley, and Rose Weasley