"Blend of Shay and -lene"
The name Shaylene is commonly a female name from the "American" origin.
Shaylene is a modern American formation rather than an inherited name: the element Shay combined with the -lene ending found in twentieth-century American feminine names such as Charlene, Darlene and Marlene. The name enters United States birth records in 1969, which fits that pattern. No meaning or earlier use in a documented naming tradition is recorded for it.
The pronunciation of Shaylene is shay-LEEN.