Christmas child or born on Christmas
A modern American invention combining the classic Natalie with the popular suffix -lynn. It ultimately derives from the Latin 'natalis', referring to the birth of Christ, blended with the Welsh-inspired 'lynn' meaning lake.
Less common today
Natalynn isn't in the latest US Top 1000. It last peaked at #3,913 in 2014.
US births per 5-year period, 1990βpresent (SSA data).