苏格拉底（希腊文：Σωκράτης，拉丁文：Socrates，前470年－前399年），古希腊哲学家，和其学生柏拉图及柏拉图的学生亚里士多德被并称为希腊三贤。他被认为是西方哲学的奠基者。没有留下著作，其思想和生平记述于后来的学者（主要是他的学生柏拉图）和同时代的剧作家阿里斯托芬的剧作中。柏拉图的《对话》一书记载了苏格拉底在伦理学领域的贡献。

苏格拉底生平，依据古代的记载，苏格拉底出生于伯里克利统治的雅典黄金时期，出身贫寒，父亲是雕刻师，母亲为助产士。苏格拉底的妻子是赞西佩（Xanthippe，5th century–4th century BCE），她替他生下了3名儿子（Lamprocles, Sophroniscus, Menexenus），苏格拉底死时他们都还很年幼。

Socrates (/ˈsɒkrətiːz/; Greek: Σωκράτης [sɔːkrátɛːs], Sōkrátēs; 470/469 – 399 BC) was a classical Greek (Athenian) philosopher credited as one of the founders of Western philosophy. He is an enigmatic figure known chiefly through the accounts of classical writers, especially the writings of his students Plato and Xenophon and the plays of his contemporary Aristophanes. Plato's dialogues are among the most comprehensive accounts of Socrates to survive from antiquity, though it is unclear the degree to which Socrates himself is "hidden behind his 'best disciple', Plato".