Gargoyle

Gargoyle refers to a carved stone or statue with ugly monstrous design. Since medieval times, gargoyle statues are commonly seen in many structures and buildings. The Hogwarts Castle is also having many gargoyle statues, one is placed outside the Headmaster's Office and becomes to life when a correct password is spoken. It was described as a extremely ugly statue. Another gargoyle statue is also seen in Hogwarts' Paved Courtyard connected to the Viaduct, and two statues of it are guarded the entrance to the staffroom.

Gargoyle is originally designed to convey water from a roof and away from the side of a building.

Etymology
From the French gargouille, meaning "throat" or "gullet". In Latin gurgulio, gula, and similar words derived from the root gar, meaning "to swallow", which represented the gurgling sound of water.

Appearances

 * Harry Potter and the Philosopher's Stone
 * Harry Potter and the Philosopher's Stone (video game)
 * Harry Potter and the Chamber of Secrets
 * Harry Potter and the Chamber of Secrets (film)
 * Harry Potter and the Prisoner of Azkaban
 * Harry Potter and the Prisoner of Azkaban (video game)
 * Harry Potter and the Goblet of Fire
 * Harry Potter and the Order of the Phoenix
 * Harry Potter and the Half-Blood Prince
 * Harry Potter and the Deathly Hallows