Uncertain; possibly related to pure or rejoicing.
Kayoni is a modern name with ambiguous roots, likely created as a melodic variation of names like Kay or Keoni. It may draw influence from the Greek 'katharos' meaning pure, or the Hawaiian Keoni, a form of John. Its usage is primarily contemporary and American.
Less common today
Kayoni isn't in the latest US Top 1000. It last peaked at #8,737 in 2025.
US births per 5-year period, 1990βpresent (SSA data).