Little king or queen
A modern phonetic spelling of the Irish name Ryan, which is derived from the surname Γ Riain. It stems from the Old Irish word 'rΓ', meaning king, combined with a diminutive suffix. While traditionally masculine, this spelling variation is frequently used for girls in the United States.
Less common today
Rhyen isn't in the latest US Top 1000. It last peaked at #9,027 in 2011.
US births per 5-year period, 1990βpresent (SSA data).