The role of Xiao Huangmen (Chinese: 小黃門) was a role for a eunuch in the Han dynasty. The position, with a salary-rank of 600 shi or dan, involved delivering and receiving messages between the imperial palace apartments and the outside court.

A Xiao Huangmen's responsibilities were to follow the emperor, receive Shangshu memorials, preach the emperor's orders, and handle communication between the emperor and the harem inside and outside the palace.

The position's responsibilities and level of authority changed over time.