你（现代标准汉语：汉语拼音：nǐ、IPA：[ni˨˩˦]；粤语：nei），是一个代名词，中文的第二人称。

于维基词典中查找你。

「你」是汉语的第二人称代词，用以称对方，多是指单个人，有时也指示若干人，如：你方。 普通话及部份方言中，「您」为“你”的尊称。此外，如果对方是您女性，个别时候还会写成“妳”（在中国大陆不规范）。

The pronoun you is the second-person personal pronoun, both singular and plural, and both nominative and oblique case, in Modern English. The oblique (objective) form you functioned previously in the roles of both accusative and dative, as well as all instances after a preposition. The possessive forms of you are your (used before a noun) and yours (used in place of a noun). The reflexive forms are yourself (singular) and yourselves (plural).