The name reached its all-time peak in 2004 with 3 births ranking #4598. STABLE Recent data shows the name is currently stable.
Jayce is a modern English spelling of Jace. Through that route it connects back to Jason, a name traditionally explained as meaning "healer".
The name belongs to the modern English family of Jace spellings that freshen an older classical name without changing its basic root. It has become especially visible in recent English-language naming.