What does Rianon mean?
Rianon is an unusual given name for females. Rianon is an uncommon last name too for both adults and children. (2000 U.S. Census)
Shown below is an analysis of the popularity of Rianon and related names. Popular alternative forms of Rianon (#unlisted) are Rhianna, Rhiannon and Rianna. Adoption of this girl name was at its most widespread in the year 1998 and has become much lower since, with the versions Rhianna and Rhiannon becoming less stylish. (Top 1000 Baby Names Records, 2014)