What does Rianon mean?
Rianon /ri-anon/ [3 sylls.] as a name for girls is of Welsh origin, and the name Rianon means "great queen, or goddess". Rianon is an alternate spelling of Rhiannon (Welsh). Reynon is a popular last name.
How popular is Rianon?
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 (not ranked) rated in the Top 1000 are Rhianna, Rhiannon and Rianna. Variants like Rheanna are seldom used. Adoption of these girl names was at its most widespread in 1998 (usage of 0.2093%) and has become much lower since, with the versions Rhianna and Rhiannon becoming less stylish. (2014 Birth Statistics)