骇客文化（英语：Hacker culture），又译为黑客文化，是一种次文化，在程序员之中特别盛行。这种文化，鼓励重视智力与技术能力的个人，用创意来克服系统中的环境限制，做出杰出与亮眼的成果。在这种文化中，称呼用聪明的方式来研究某个系统或事物，做出有意义的成品的行为，为「骇」（hacking），喜欢去「骇」的人，为骇客。这个文化在1960年代的美国兴起，一般被认为起源于麻省理工学院的铁路模型技术俱乐部与计算机科学与人工智能实验室。自由软件运动与开放源代码运动都源于这个文化。

The hacker culture is a subculture of individuals who enjoy the intellectual challenge of creatively overcoming and circumventing limitations of systems to achieve novel and clever outcomes. The act of engaging in activities (such as programming or other media) in a spirit of playfulness and exploration is termed "hacking". However, the defining characteristic of a hacker is not the activities performed themselves (e.g. programming), but the manner in which it is done: hacking entails some form of excellence, for example exploring the limits of what is possible, thereby doing something exciting and meaningful. Activities of playful cleverness can be said to have "hack value" and are termed "hacks" (examples include pranks at MIT intended to demonstrate technical aptitude and cleverness). The hacker culture originally emerged in academia in the 1960s around the Massachusetts Institute of Technology (MIT)'s Tech Model Railroad Club (TMRC) and MIT Artificial Intelligence Laboratory.