长颈鹿（学名：Giraffa camelopardalis）是一种生长在非洲的反刍偶蹄动物，是世界上最高的陆生动物。雄性个体高达4.8到5.5米高，重达900公斤。雌性个体一般要小一些。

长颈鹿是非洲特有的动物，与鹿和牛有亲缘关系，但属于不同的科，即长颈鹿科。长颈鹿科包括长颈鹿和霍加狓两种动物。

长颈鹿的种加词为camelopardalis，源于早期罗马帝国时期人们给它起的名字，意思是骆驼和豹的杂交体，因为它的外形类似这两种动物的揉合体。

中国明朝时郑和的船队航行到东非，曾带两只长颈鹿回到北京，被当时的人们认为是麒麟。明成祖以此祥瑞之兆来表明自己施政的伟大。时至今日，日语及韩语仍将长颈鹿称作麒麟，台语也将「长颈鹿」称作「麒麟鹿」。

The giraffe (Giraffa camelopardalis) is an African even-toed ungulate mammal, the tallest living terrestrial animal and the largest ruminant. Its species name refers to its camel-like shape and its leopard-like colouring. Its chief distinguishing characteristics are its extremely long neck and legs, its horn-like ossicones, and its distinctive coat patterns. It is classified under the family Giraffidae, along with its closest extant relative, the okapi. The nine subspecies are distinguished by their coat patterns.