笔顺是指在书写汉字时，笔画出现的先后次序。

先横后竖，先撇后捺，从上到下，从左到右，由外至内，先外后内再封口，先中间后两边，但有时可能并不如此。

Stroke order (simplified Chinese:笔顺; traditional Chinese:筆順; pinyin:bǐshùn; Yale: bāt seuhn; Japanese:筆順 hitsujun or 書き順 kaki-jun; Korean:필순 筆順 pilsun or 획순 畫順 hoeksun) refers to the order in which the strokes of a Chinese character (or Chinese derivative character) are written. A stroke is a movement of a writing instrument on a writing surface. Chinese characters are used in various forms in Chinese, Japanese, Korean, and in Vietnamese. They are known as Hanzi in Chinese, kanji in Japanese, Hanja in Korean, and Chữ Nôm (formerly Hán tự) in Vietnamese.