Rilynn is a modern American girl's name created in the early 21st century as a twist on traditional names Riley and Lynn. It has no specific meaning but is often interpreted as connected to nature and water, with possible meanings of "rye meadow" or "valley," and "from the lake." Despite its lack of historical significance, Rilynn gained popularity in recent years due to its unique sound and spelling, first appearing on the US top 1000 baby girl names list in 2016.