Offensive may relate to:
In sports, computer and video gaming, or combat; the team which is attacking, pitching or moving forward.
In language or morals, terms and concepts which are unacceptable to some people, such as swearing and profanity.
In fashion (etiquette), an unfashionable thought, emotion, action or other behaviour.
Offensive , a Trotskyist political party.
military offensive, an organized attack of military forces