Combination of Jay and Lynn, meaning jaybird and lake.
Jayelynn is a modern American compound name. It blends the prefix Jay, which refers to the lively jaybird or serves as a diminutive of James, with the suffix Lynn, derived from the Welsh word for lake.
Less common today
Jayelynn isn't in the latest US Top 1000. It last peaked at #10,549 in 2009.
US births per 5-year period, 1990βpresent (SSA data).