求偶，又名求爱，是指动物或人类追求配偶，寻找性伴侣。动物求偶主要是为了交配以繁殖后代，人类求偶除了传宗接代之外，还为了寻找性伴侣满足情感和性需要。

现代人类求偶通常会有约会之类的活动，之后通过恋爱，或者再进一步创建婚姻关系。

在人类世界，求偶行为在不同社会有文化差异，例如：

• 刘三姐唱山歌
• 西方礼仪送玫瑰花
• 中国古人弹一曲《凤求凰》
• 爱情小说月下弹结他
• 电台点唱请对方留意歌词

求爱形式很多，主要为投其所好，或许有时会弄巧反拙，给对方误会性骚扰。

Courtship is the period in a couple's relationship which precedes their engagement and marriage, or establishment of an agreed relationship of a more enduring kind. During courtship, a couple get to know each other and decide if there will be an engagement or other such agreement. A courtship may be an informal and private matter between two people or may be a public affair, or a formal arrangement with family approval. Traditionally, in the case of a formal engagement, it has been perceived that it is the role of a male to actively "court" or "woo" a female, thus encouraging her to understand him and her receptiveness to a proposal of marriage.