Amiyah is a distinctive girls' name in United States, ranking #9630 in 1996 with 8 recorded births. The name reached its all-time peak in 2016 with 1,238 births ranking #256. In 1996, approximately 1 in every 219,120 girls born was named Amiyah. FALLING Recent data shows the name is currently falling.
Amiyah is probably a modern variant of Amaya. That likely connection gives it a plausible route back to Amaia, though the source keeps the relationship slightly cautious rather than absolute.
Like several popular contemporary girls’ names, Amiyah seems to have grown through sound and spelling fashion as much as through inherited tradition. The documented route is modern, even if it may lean on the older Amaya family.