花语指各国、各民族根据各种植物，尤其是花卉的特点、习性和传说典故，赋予其的各种不同的人性化象征意义。

西方

花语在19世纪初起源于法国，随即流行到英国与美国，是由一些作家所创造出来，主要用来出版礼物书籍，特别是提供给当时上流社会女性休闲时翻阅之用。

The language of flowers, sometimes called floriography, is a means of cryptological communication through the use or arrangement of flowers. Meaning has been attributed to flowers for thousands of years, and some form of floriography has been practiced in traditional cultures throughout Europe, Asia, and the Middle East. Plants and flowers are used as symbols in the Hebrew Bible, particularly of love and lovers in the Song of Songs, as an emblem for the Israelite people and for the coming Messiah. In Western Culture, William Shakespeare ascribed emblematic meanings to flowers, especially in Hamlet, Prince of Denmark.