Sio Family History
Sio Surname Meaning
Chinese: variant Romanization of the surname 蕭 (or 肖) based on the Cantonese pronunciation see Xiao.
Samoan: unexplained.
Italian (Sardinia): perhaps from a short form of the personal name Desio.
Galician (Sió): habitational name from either of two places called Sió in Lugo or Ourense.
Hungarian (Sió): probably a topographic name from the stream Sió in Somogy county, a tributary of the river Danube.
Source: Dictionary of American Family Names 2nd edition, 2022
