Rhyen is of Welsh origin, derived from the name Rhiannon, which means 'great queen'. It is often spelled variously as Rhian, Ryhen, or even Ryan, but maintains its unique Welsh roots. The name Rhyen has gained popularity in recent years, particularly in English-speaking countries.
Rhyen is not a particularly popular name, with only 51 babies named Rhyen born between 2002 and 2020. There were peaks in popularity in the years 2008 and 2016, each with 8 births, but it has been more common since 2002 for around 6 babies to be named Rhyen each year.