Java 3D 是 Sun 公司開發的用于客戶端 3D 圖形應用編程的一套接口(API)，無論是游戲開發、科學計算，還是MCAD、生物技術，還是虛擬現實（Virtual Reality）、仿真技術，Java 3D都是很優秀的選擇。
Java 3D is a client−side Java application programming interface (API) developed at Sun Microsystems for rendering interactive 3D graphics using Java. Using Java 3D you will be able to develop richly interactive 3D applications, ranging from immersive games to scientific visualization applications.