Modern invention, likely combining Jasmine and Lynn
Jazalynn is a contemporary American creation. It likely blends the floral name Jasmine, of Persian origin, with the popular suffix -lynn, which is derived from the Welsh word for lake.
Less common today
Jazalynn isn't in the latest US Top 1000. It last peaked at #5,894 in 2011.
US births per 5-year period, 1990βpresent (SSA data).