"Battle Without Honor or Humanity" (バトル･ウィズアウト･オナー・オア・ヒューマニティー) is an instrumental music piece by Japanese rock musician Tomoyasu Hotei. It was originally featured in the 2000 film New Battles Without Honor and Humanity (also known as Another Battle) by Junji Sakamoto, for which Hotei wrote the soundtrack and also stars in as an actor. On the film's soundtrack, the piece is titled "New Battles Without Honor and Humanity Theme" (新・仁義なき戦いのテーマ).