"Blend of Quin and Lynn"
The name Quinlyn is commonly a female name from the "English" origin.
Quinlyn is a modern American blend of Quin, a short form of Quinn, and the feminine suffix -lyn, as in Lynn. Both elements are common building blocks in American girls' names, and the combination produces a name that is not recorded in earlier sources.
The pronunciation of Quinlyn is KWIN-lin.