Xiao may refer to:
- Xiào, “filial piety", or "being good to parents", a virtue
- Xiao (flute), a Chinese end-blown flute
- Xiao (rank), a rank used for field officers in the Chinese military
- Xiao County, in Anhui, China
- Xiao Mountain, a range of mountains in Henan, China, or the surrounding Xiao (region)
- Xiao River, a tributary of the Xiang River, in Hunan, China
Read more about Xiao: People