Modern invented name, possibly meaning lake or freckled
Brezlyn is a contemporary American coinage, likely created by blending the sounds of names like Breanna or Brecken with the popular 'lyn' suffix. It may also be a creative variation of the Gaelic name Breislin, which relates to a freckled appearance or a pool of water.
Less common today
Brezlyn isn't in the latest US Top 1000. It last peaked at #5,295 in 2018.
US births per 5-year period, 1990βpresent (SSA data).