''The Other Boleyn Girl'' is a HistoricalFiction novel written by British author PhilippaGregory, loosely based on the life of 16th-century aristocrat Mary Boleyn. Reviews were mixed; some reviewers said it was a brilliantly claustrophobic look at palace life in Tudor England, while others have consistently pointed out the lack of historical accuracy. Even so, it has enjoyed phenomenal success and popularity since its publication in 2002, and launched a [[FollowTheLeader new wave of Tudor-centric historical romances.]]

''The Other Boleyn Girl'' speaks of the little-known sister to Anne Boleyn. Inspired by the life of Mary Boleyn, Gregory depicts the annulment of one of the most significant royal marriages in English history (that of King Henry VIII and Catherine of Aragon) and the great need of a male heir to the throne, though most of the actual history is highly distorted.

Has a sequel, ''Literature/TheBoleynInheritance''.

The book was [[TheFilmOfTheBook made into a movie]] in 2008, starring ScarlettJohansson as Mary, NataliePortman as Anne, and Eric Bana as Henry VIII.
!!This book has examples of:
* BerserkButton: Better not remind Anne of her failed marriage to Henry Percy. She learns to suppress her feelings as the book goes on, though.
* BookEnds: The film starts and ends with 3 children playing in a meadow.
** The book does this too, with a different event; it begins and ends with a scene where Mary is attending a public execution, expecting the king to give a pardon out at the last minute. She's wrong both times.
* BrotherSisterIncest: Between George and Anne.
* BettyandVeronica: Mary is Betty, Anne is Veronica.
* CrapsackWorld: The Tudor Court has spies everywhere and is full of people scheming constantly to get the king's favour who will stab you in the back at a moment's notice. Your closest relatives think of you only as a pawn in a chess game, especially if you are a girl.
* TheDeterminator: Deconstructed and Reconstructed. Anne Boleyn and Henry VIII. Mary tells Catherine that Anne and Henry may be getting along so well because they are both this trope and a lot alike. When Catherine points out that she is determined as well, Mary tells her that she is differentiated from them by being a lot less selfish and willing to put others before the goals she is determined to achieve.
* EnglishRose: The novel is even more overt than the film in its portrayal of Mary as idealistic. Anne describes Mary (albeit mockingly) as "sweet and open and English and fair" at one stage, and Henry VIII himself refers to her as "my little English rose".
* HeirClubForMen
* HistoricalVillainUpgrade: Anne. Although the real Anne Boleyn was no doubt ambitious, she also did a lot of good in her life, such as supporting many charities, sheltering Protestants fleeing from other countries, promoting artistic endevours, and showing an unusualy keen interest in her daughter's upbringing. Furthermore, most historians agree that she was almost certainly innocent of the crimes she was accused of, including incest with her brother.
** The author almost seems to have a personal grudge against Jane Parker. The sequel, ''Literature/TheBoleynInheritance'' takes this UpToEleven.
* FreudianTrio: The three siblings, with Anne as Ego, Mary as Superego, and George as Id.
* LapPillow: Mary lets William Stafford sleep with his head in her lap when he's suffering from seasickness. [[spoiler: He's faking it.]]
* MarryForLove: Eventually, [[spoiler:Mary does this, with Sir William Stafford]].
* PleaseSpareHimMyLiege: Mary considers doing this to save Anne but her husband talks her out of it by pointing out that if she does, she'll likely share the fate of her siblings.
** Played straight in the movie.
* TheGloriousWarOfSisterlyRivalry: Anne vs. Mary for the right to Henry's hand.
* TitleDrop: Several times. Both Mary and Anne are referred to as "the other Boleyn girl" at various points, depending on which one the king currently favors.
* UnwantedSpouse: Jane Parker, wife of George Boleyn; and also Catherine of Aragon to Henry VIII.