The 55th most common family name "Xiào" () appears to be very rare in Hong Kong. This is explained by the fact Hong Kong uses Traditional Chinese characters rather than Simplified Chinese characters. Originally, the surname (Xiāo) was rather common while the surname 肖 (Xiào) was extremely rare, if not non-existent (it is mentioned only sporadically in historical texts). The first round of simplification in 1956 simplified 蕭 into , keeping 蕭/萧 and 肖 distinct. However the second-round in 1977, which has long been abolished, merged 萧 and 肖 into 肖. Despite the retraction of the second round, some people have kept 肖 as their surname, so that there are now two separate surnames, 萧 and 肖.