Likely a modern invented name or variant of Cason
Kaysin is a contemporary American creation, likely formed by blending the popular 'Kay' prefix with the 'sin' or 'son' suffix. It is often considered a phonetic variant of Cason or Kasen, which can trace roots to the English surname meaning 'son of Case' or the Greek name Jason.
Less common today
Kaysin isn't in the latest US Top 1000. It last peaked at #3,558 in 2020.
US births per 5-year period, 1990–present (SSA data).
