The name reached its all-time peak in 2022 with 267 births ranking #193. STABLE Recent data shows the name is currently stable.
Ayan is a genuinely multi-origin name used in several different traditions. Because the route changes by culture, the most reliable treatment is to acknowledge the multiple entries rather than assign one universal gloss.
Behind the Name treats Ayan as a name with distinct Bengali, Azerbaijani/Kazakh, and Somali entries. That is a stronger and more accurate explanation than the earlier loose all-purpose wording.