截拳道（英语：Jeet Kune Do，英文简称JKD，为粤语音译）。是李小龙于生前，正在构思并实行的一套近代「武术哲学」。其武学汲取并融合了世界各国文化的各式武术；并以咏春拳为截拳道的武学核心及发展的武学根基、拳击与击剑（一般所谓的西洋剑术）作为截拳道能有所进化的一大因素，以上三种武术可谓截拳道之技术骨干。以道家老子的哲学思想为根基，所开始创立建构的一种新型态，并也是另一象限，全新的武学思想逻辑。

如上所述，咏春拳所内含的武学核心，可视为JKD发展的武学根基，拳击或是所谓的Boxing，则为JKD能有所进化的一大要因，主要是受穆罕默德‧阿里的影响，例：蝴蝶步走位、快速刺拳、上盘圆弧形闪避。有一说（待考证）阿里拳王所使用的技术应称为「腿蹬拳击术」。击剑则奠定了JKD独特「平行横移」走位，如滑行般的下盘姿势。

Jeet Kune Do, abbreviated JKD, is an eclectic and hybrid style fighting art heavily influenced by the philosophy of martial artist Bruce Lee, who founded the system on July 9, 1967, referred to it as "non-classical", suggesting that JKD is a form of Chinese Kung Fu, yet without form. Unlike more traditional martial arts, Jeet Kune Do is not fixed or patterned, and is a philosophy with guiding thoughts. It was named for the Wing Chun concept of inte****tion or attacking while one's opponent is about to attack. Jeet Kune Do practitioners believe in minimal movements with maximum effects and extreme speed. The system works by using different "tools" for different situations, where the situations are divided into ranges, which are kicking, punching, trapping, and grappling, where martial artists use techniques to flow smoothly between them.