Fruits Basket (フルーツバスケット, Furūtsu Basuketto?), sometimes abbreviated Furuba (フルバ?), is a shōjo manga series by Natsuki Takaya. It was serialized in the semi-monthly Japanese magazine Hana to Yume, published by Hakusensha, from 1999 to 2006. The series was also adapted into a 26-episode anime series, directed by Akitaro Daichi. The series tells the story of Tohru Honda, an orphan girl who, after meeting Yuki, Kyo, and Shigure Sohma, learns that thirteen members of the Sohma family are possessed by the animals of the Chinese zodiac (十二支, Jūnishi?) and are cursed to turn into their animal forms if they are embraced by anyone of the opposite sex. (Though at least by the anime it's more of just torso to torso touch that activates it.)

The word "Fruits" in the title is always plural; the spelling originates from the transcription of the English word "fruit" into Japanese, where because there is no "tu" sound, "tsu" is used instead. The title comes from the name of a popular game played in Japanese elementary schools, which is alluded to in the series.

The name spellings used in this article correspond to those given in the official Region 1 DVD and English manga releases. Romanization style names are given in Western order, with the family name last.

When high school student Tohru Honda's mother died in a car accident, Tohru begins living in a tent and supporting herself. That is, until she finds a home in the least likely of places, inhabited by her classmate Yuki Sohma and his cousins Shigure and Kyo. The Sohmas however live with a curse. Thirteen members of the family are possessed by spirits of the Chinese zodiac and turn into their zodiac animal when hugged by the opposite gender. When Tohru finds out, she promises not to tell and is allowed to keep living with them. The Sohma's curse however, is deeper and darker than Tohru realised, but her presence soon becomes a positive influence on those possessed by the zodiac. She sets out to break the curse, and ends up changing the Sohma clan forever.

In many places, the anime episodes are very similar to the corresponding manga chapters. However, the anime does make some changes to the story. Several events are combined, and some events, such as Tohru's first meeting with Momiji and all references to Tohru's baseball hat, never happen. Much of the events surrounding the revealing of Kyo's true form are greatly changed in the anime, including adding an extended chase sequence, Tohru meeting Akito in the woods, her meeting with Hanajima and Uotani at her mother's grave, and Yuki having also chased after Kyo, none of which happen in the manga.

While the anime keeps most of the characters exactly the same as in the manga series, it does make some changes. In the manga, Momiji is half-German and half-Japanese and regularly speaks German, particularly when he first meets Tohru, while in the anime his bi-racial status is never mentioned and no German is spoken. Shigure's darker tones are toned down in the anime, with many remarks he makes in the manga that hint at a hidden agenda are left out, along with most of his early scenes with Akito. In the anime, Akito is biologically male and will die at a young age because of the curse, while in the manga, Akito is biologically female but brought up as male and is not dying. As well as Isuzu "Rin" Sohma, who is the horse, and Kureno Sohma, who is the rooster, are never mentioned or showed in the anime and is only in the manga. The anime only covers the first 8 books of the manga, which has 23 books in total.

The title of the series is taken from a children's game, Fruits Basket (フルーツバスケット, fu-ru-u-tsu-ba-su-ke-t-to?, where the 'tsu' represents the 't' in "fruit", making it plural in an incorrect way), in which the participants sit in a circle, and the leader of the game names each person after a type of fruit; when the name of a child's fruit is called, that child gets up and has to find a new seat. When the protagonist, Tohru Honda first plays this game in kindergarten, she is assigned "Onigiri" (rice ball), by her cruel classmates, but she does not mind because she thinks onigiri are delicious. Once the game is finished, and all of the children but Tohru are called, Tohru realizes that onigiri are not a type of fruit at all, and she realizes that she does not belong. Tohru comes to associate this game with the Sohma family, and that she does not fit in among them any more than an onigiri does in a basket of fruit. In volume 1 of the manga, after Yuki and Kyo bring Tohru home from her grandfather's house, she begins to feel like she belongs with the Sohma family. After this, she imagines herself as a child hearing "Onigiri" called in the game, symbolizing that she has finally found her place.

Natsuki Takaya named most of the twelve Sohmas cursed by zodiac animals after an archaic names of month in the former Japanese lunisolar calendar that corresponds to their zodiac animal. The exceptions are Kureno and Momiji, whose names were swapped by mistake; Kyo, who as the cat is not part of the official zodiac; and Yuki.

The 136 chapters of Fruits Basket were originally serialized in Japan by Hakusensha in Hana to Yume from January 1999 to November 2006. These were collected in 23 tankōbon volumes, with the final volume published in Japan on March 19, 2007.

The series is licensed in English in North America and the United Kingdom by Tokyopop and in Singapore by Chuang Yi. The Singapore edition is licensed to be imported to Australia and New Zealand by Madman Entertainment. All 23 English-language volumes have been released in North America and Singapore. In addition, Tokyopop released a box set containing the first four volumes in October 2007, and started re-releasing earlier volumes in "Ultimate Editions" combining two sequential volumes in a single larger hard-cover volume with new cover art. The first Ultimate Edition release met with mixed reviews, however, because they exactly reproduce the first two volumes without correcting changed page numbers or prior errors. As of June 2008, four Ultimate Editions have been released, covering the first eight volumes of the series.