Beastars (stylized in all caps) is a Japanese manga series written and illustrated by Paru Itagaki. It was serialized in Akita Shoten's shōnen manga magazine Weekly Shōnen Champion from September 2016 to October 2020, with its chapters collected in 22 tankōbon volumes. The manga is licensed for English release in North America by Viz Media. The story takes place in a modern world of civilized, anthropomorphic animals with a cultural divide between carnivores and herbivores, and where eating meat (which always comes from other anthropomorphic animals) is strictly illegal. Beastars is set in the same universe as Beast Complex, another manga of Itagaki that originally served as Beastars' predecessor.

An anime television series adaptation produced by Orange aired from October to December 2019 on Fuji TV's +Ultra programming block. A second season aired from January to March 2021. The first half of the third and final season premiered in December 2024, and the second half will premiere in 2026. The anime series is licensed by Netflix. The first season premiered outside of Japan in March 2020, and the second in July 2021.

By October 2021, the manga had over 7.5 million copies in circulation. Beastars won multiple awards in 2018, including the 11th Manga Taishō, being the first Akita Shoten title to receive it, the New Creator Prize at the 22nd Tezuka Osamu Cultural Prize, the 42nd Kodansha Manga Award in the shōnen category, and the New Face Award at the 21st Japan Media Arts Festival.

In a modern society inhabited by anthropomorphic animals, a cultural divide exists between herbivores and carnivores. Legoshi, a timid gray wolf, attends Cherryton Academy, residing in a dormitory with other carnivorous students, including his extroverted Labrador friend, Jack. As a stagehand in the school's drama club, Legoshi assists its members, led by the star actor Louis, a red deer.

The school is shaken when Tem, an alpaca, is murdered and devoured, escalating tensions between herbivores and carnivores. Meanwhile, Legoshi meets Haru, a dwarf rabbit with unrequited feelings for Louis, and develops conflicted emotions toward her. Louis abruptly leaves school to lead the Shishigumi, a lion-dominated crime syndicate from which Legoshi rescues Haru, but later relinquishes control to Melon, a leopard-gazelle hybrid.

Legoshi trains under Gohin, a giant panda physician operating in the Black Market, where illegal meat is traded. Concurrently, Louis investigates Kines, an energy drink containing herbivore-derived substances. The murderer is revealed to be Riz, a bear, whom Legoshi defeats after consuming Louis's leg, leaving the deer with a prosthetic. Though arrested, Legoshi avoids prison but receives a criminal record as a devourer, nullifying his eligibility to marry Haru.

After meeting his Komodo dragon grandfather, Gosha—who once collaborated with Yahya, a horse—Legoshi confronts Yahya. Following a violent altercation, Yahya offers Legoshi a deal: arrest Melon in exchange for a cleared record and monetary reward. Legoshi agrees but is shot twice during the mission, including a fall from a cliff. Despite his injuries, he survives, Melon is imprisoned, and Legoshi ultimately begins a relationship with Haru.

Beastars, written and illustrated by Paru Itagaki, was serialized for 196 chapters in Akita Shoten's shōnen manga magazine Weekly Shōnen Champion from September 8, 2016, to October 8, 2020. Its chapters were collected in 22 individual tankōbon volumes, released from January 6, 2017, to January 8, 2021.