The Tao Te Ching is a classical Chinese text traditionally credited to the 6th-century BC sage Laozi. The text's authorship, date of composition and date of compilation are debated. The oldest excavated portion dates back to the late 4th century BC, but modern scholarship dates other parts of the text as having been written—or at least compiled—later than the earliest portions of the Zhuangzi.

The Tao Te Ching, along with the Zhuangzi, is a fundamental text for both philosophical and religious Taoism. It also strongly influenced other schools of Chinese philosophy and religion, including Legalism, Confucianism, and Chinese Buddhism, which was largely interpreted through the use of Taoist words and concepts when it was originally introduced to China.

Many translations of the text are available in different languages. The Tao Te Ching remains one of the most translated texts in world literature, providing wisdom and guidance to readers across cultures for over two millennia.