Modern combination of Brynn and Lynn
Brylyn is a contemporary American invention, likely created by blending the Welsh-derived Brynn, meaning 'hill', with the English Lynn, meaning 'lake'. It follows the popular trend of adding the '-lyn' suffix to established names to create a fresh, rhythmic sound.
Less common today
Brylyn isn't in the latest US Top 1000. It last peaked at #8,967 in 2013.
US births per 5-year period, 1990βpresent (SSA data).