Valiant or rye clearing; pool or lake
Rilynn is a modern American invention, likely created by blending the traditional Irish name Riley with the popular suffix -lynn. Riley stems from the Gaelic 'raghallach' meaning valiant, or the Old English 'ryge leah' meaning rye clearing. The suffix -lynn is derived from the Welsh 'llyn' meaning lake or pool.
Less common today
Rilynn isn't in the latest US Top 1000. It last peaked at #1,009 in 2019.
US births per 5-year period, 1990βpresent (SSA data).