Likely a modern variant of Cassian or Hasan
Kasan is a rare name with ambiguous roots. It is often used as a phonetic variation of the Latin name Cassian, meaning 'hollow,' or the Arabic name Hasan, meaning 'handsome' or 'good.' In some contexts, it may also be a creative modern coinage or a surname used as a given name.
Less common today
Kasan isn't in the latest US Top 1000. It last peaked at #7,658 in 2020.
US births per 5-year period, 1990βpresent (SSA data).