"Blend of Natalie and Lynn"
The name Natalynn is commonly a female name from the "American" origin.
Natalynn is a modern American formation that joins the name Natalie with the element Lynn, a common closing element in English-language girls' names. It first appears in United States birth records in 1997, which fits a twentieth-century coinage rather than an inherited name. The form has no separate meaning of its own beyond those two parts.
The pronunciation of Natalynn is NAT-uh-lin.