Riou Coat of Arms and Surname Origin

Many Riou families will find their roots under Rioux, the form most records use.

What is the meaning of Riou?

At root, the name means “From Rioux / stream”. French birth records list 17,739 children named Riou between 1891 and 2000. Births ran at 876 in 1891–1900 and 1,540 in 1991–2000.

How is Riou related to Rioux?

Before spelling was fixed, Rioux was also written Riou. Before spelling was standardised, one family could appear under several forms. Other spellings include Rioult and Rieux.

Is there a Riou coat of arms?

Looking for a Riou coat of arms? Arms were granted to families, not to surnames, and our research shows which heraldic tradition fits yours.

Want more than a summary? See the Riou family name pack.