Crystal lake or follower of Christ
Kryslyn is a modern American invented name. It likely combines the prefix 'Krys' (from Crystal or Kristina) with the popular 'lyn' suffix, suggesting a meaning related to clear glass or a follower of Christ, blended with the Welsh element for a lake or pool.
Less common today
Kryslyn isn't in the latest US Top 1000. It last peaked at #10,524 in 2005.
US births per 5-year period, 1990βpresent (SSA data).