Modern combination of Bry and Lynn
A contemporary American invention, Brylynn likely combines the prefix 'Bry' (from names like Brianna or Bryan) with the popular suffix 'Lynn'. While 'Bry' can trace back to Celtic roots meaning high or noble, and 'Lynn' to Welsh roots meaning lake, the name itself is a modern stylistic creation.
Less common today
Brylynn isn't in the latest US Top 1000. It last peaked at #4,072 in 2013.
US births per 5-year period, 1990βpresent (SSA data).