Modern invented name, possibly meaning shallow or calm water.
Chalyn is a contemporary American invention, likely created by blending phonetic elements from names like Shaylyn or Kaylyn. It is sometimes associated with the word 'shallow' in reference to water, or viewed as a creative variation of the Gaelic-derived Lynn.
Less common today
Chalyn isn't in the latest US Top 1000. It last peaked at #7,950 in 1996.
US births per 5-year period, 1990βpresent (SSA data).