Rioux Family History
Rioux Surname Meaning
Breton (mainly Morbihan): variant of Riou (see Rio). French (southern): topographic name for someone who lived by a stream from Occitan riou ‘stream’ (from Latin rivus).
It can also be a habitational name from any of various places called with this word, e.g. Rioux in Charente-Maritime or Rioux-Martin in Charente.
Source: Dictionary of American Family Names 2nd edition, 2022
