"Blend of Courtney and Lynn"
The name Kourtlyn is commonly a female name from the "American" origin.
Kourtlyn is a modern American construction rather than an inherited name. The first element is a phonetic spelling of the Court- found in Courtney, and the second is the -lyn suffix that derives from Lynn. The name first appears in United States birth records in 1992, which fits a name assembled from existing parts rather than one carried over from an older naming tradition.
The pronunciation of Kourtlyn is KORT-lin.