道格拉斯·卡尔·恩格尔巴特（Douglas Carl Engelbart，1925年1月30日－2013年7月2日），小名道格·恩格尔巴特（Doug Engelbart），美国发明家，瑞典人和挪威人后裔。最广为人知的是他发明了鼠标，另外他的小组是人机交互的先锋，开发了超文本系统、网络计算机，以及图形用户界面的先驱；并致力于倡导运用计算机和网络，来协同解决世界上日益增长的紧急而又复杂的问题。2013年7月2日因肾衰竭于加利福尼亚阿瑟顿的家中逝世，享寿88岁。

Douglas Carl Engelbart (January 30, 1925 – July 2, 2013) was an American engineer and inventor, and an early computer and Internet pioneer. He is best known for his work on founding the field of human–computer interaction, particularly while at his Augmentation Research Center Lab in SRI International, which resulted in the invention of the computer mouse, and the development of hypertext, networked computers, and precursors to graphical user interfaces. These were demonstrated at The Mother of All Demos in 1968. Engelbart's Law, the observation that the intrinsic rate of human performance is exponential, is named after him.