"Blend of J and Lynn"
The name Jlynn is commonly a unisex name from the "English" origin.
Jlynn is a modern American formation built from an initial J followed by the name Lynn. It first appears in United States birth records in 1993, which places it among late twentieth-century American names assembled from the Lynn element rather than in an older naming tradition. No meaning is attached to the initial element; the recognisable part of the name is Lynn, an English surname and given name also used as a suffix in many American coinages.
The pronunciation of Jlynn is JAY-lin.