Lan Caihe (藍采和; pinyin: Lán Cǎihé; Wade-Giles: Lan Ts'ai-ho) is the least known of the Eight Immortals. Lan Caihe's age and sex are unknown. The deity could be a hermaphrodite, but in the form most well-known he is a young effeminate boy or youth carrying a bamboo flower basket.

He was from Tang Dynasty. His/her behaviour was out of norm and known for its bizarreness. He wore only shorts and thin shirts in winter, and thick jacket and long pants in summer. He walked with one foot bare and another with shoe.