技能（英语：Skill），泛指有别于天赋，必须耗费时间经由学习、训练或工作经验，才能获得的能力。通常也会将技术涵盖在「专业技能」之内。

由于技能的获得有其相依性，像是写作源自于写，演讲源自于说，因此表达出技能之间彼此关系的树状图表，称为技能树（英语：Skill tree）。

A skill is learning to carry out a task with pre-determined results often within a given amount of time, energy, or both. Skills can often be divided into domain general and domain-specific skills. For example, in the domain of work, some general skills would include time management, teamwork and leadership, self-motivation and others, whereas domain-specific skills would be useful only for a certain job. Skill usually requires certain environmental stimuli and situations to assess the level of skill being shown and used.