Pansy Parkinson is a Slytherin student. She attends Hagrid's first Care of Magical Creatures lesson with the Slytherins and Gryffindors. She is in tears after Draco Malfoy's attack, and thinks that Hagrid should be fired straight away.
Pansy Parkinson joins the other Slytherin fourth-year students outside Snape's dungeon as they wait for their Double Potions lesson. She thinks their badges, which change from the message supporting Cedric Diggory to proclaim POTTER STINKS when pressed, are very funny and joins in the students laughing at Harry. She finds Hermione being hit by Malfoy's Densaugeo hex hilarious, and enjoys the sight of Hermione's growing front teeth.
Pansy stands with Crabbe, Goyle and Malfoy outside the Potions classroom, sniggering heartily at the article about Harry's 'Secret Heartache' in Witch Weekly. Pansy was interviewed by Rita Skeeter for the article, and suggested to the journalist that Hermione created a Love Potion to gain Viktor Krum's and Harry's affection.
Pansy Parkinson is one of the students who joins Professor Umbridge in trying to catch those meeting in the Room of Requirement. Pansy ran into the Room of Requirement at Umbridge's request to see if the students had left anything behind, and found the list of names that was pinned on the wall, giving it to the professor as evidence.