Combination of Bre and the suffix lyn
Brelyn is a modern American invention, likely created by blending the popular prefix 'Bre' (often derived from Brianna or Brenda) with the common 'lyn' suffix. It follows the contemporary trend of creating rhythmic, two-syllable names that feel familiar yet remain rare. Because it is a modern coinage, it lacks a singular historical etymology.
Less common today
Brelyn isn't in the latest US Top 1000. It last peaked at #4,663 in 2012.
US births per 5-year period, 1990βpresent (SSA data).