The name reached its all-time peak in 1996 with 7 births ranking #2096. FALLING Recent data shows the name is currently falling.
Evan is most often treated as the Welsh form of John and is therefore usually linked with the meaning "God is gracious". It feels gentle, clean, and well established without ever seeming dated.
The name has long been used in Wales and later spread widely through the English-speaking world. Its modern popularity comes from its easy sound and familiar but not overformal style.