Likely a modern elaboration of Zari or Zareen
Zarian is a contemporary name with multiple possible roots. It is often considered a modern American invention, potentially blending the Persian name Zari, meaning 'golden,' with a popular '-ian' suffix, or it may be used as a variant of the Armenian name Zareh.
Less common today
Zarian isn't in the latest US Top 1000. It last peaked at #4,234 in 2008.
US births per 5-year period, 1990βpresent (SSA data).