Known as Baki the Grappler in North America, is a manga series written and illustrated by Keisuke Itagaki. It was originally serialized in Weekly Shōnen Champion from 1991 to 1999 and collected into 42 tankōbon volumes. It was followed by three sequel series; Baki (バキ!!, officially romanized as "New Grappler Baki: In Search of Our Strongest Hero"), which was serialized from 1999 to 2005 and collected into 31 volumes, Baki Hanma (範馬刃牙 Hanma Baki, officially romanized as "Baki: Son of Ogre"), which was serialized from 2005 to 2012 and collected into 37 volumes, and Baki-Dou (刃牙道 Baki Dō, lit. "Baki: The Way"), which was serialized from 2014 to 2018 and collected into 22 volumes. A fifth series will be created and feature Nomi no Sukune.

A 45-minute original video animation (OVA) was released in 1994. A 24-episode anime aired on TV Tokyo between January 8 and June 25, 2001. This was quickly followed by a second 24-episode series, from July 22 to December 24, 2001. The OVA was the first to be licensed and released in North America, in 1998 by Central Park Media, followed by the original manga series in 2002 by Gutsoon! Entertainment (incomplete), and finally both anime series in 2005 by Funimation Entertainment. As of April 2018, the Baki series had over 70 million copies in circulation.

『グラップラー刃牙』（ - バキ）は、板垣恵介による日本の格闘漫画。『週刊少年チャンピオン』（秋田書店）に連載された。第1部はOVA化、TVアニメ化されている。続編として『バキ』、『範馬刃牙』、『刃牙道』があり本項ではこれらも併せて解説する。

外伝作品として、『バキ外伝 疵面-スカーフェイス-』『バキ外伝 創面（きずづら）』（原作：板垣恵介、作画：山内雪奈生）『バキ外伝 拳刃（けんじん）』（原作・構成：板垣恵介、原作協力：浦秀光、作画：宮谷拳豪）などがある。

シリーズ発行部数は2018年時点で累計6500万部。

Baki the Grappler ou Grappler Baki (グラップラー刃牙) é uma série de anime e manga de Keisuke Itagaki. Foi originalmente publicada na Weekly Shōnen Champion de 1991 ate 1999, em 42 volumes. Seguida de duas sequencias New Grappler Baki (de 1999 ate 2005) e Baki: Son of Ogre(de 2005 até 2012).