Finnley is a moderately popular boys' name in England & Wales, ranking #369 in 2018 with 123 recorded births. The name reached its all-time peak in 2020 with 171 births ranking #277. In 2018, approximately 1 in every 2,541 boys born was named Finnley. FALLING Recent data shows the name is currently falling.
Finnley is a modern spelling form of the Finley family and is generally understood through the same "fair warrior" background. It keeps the familiar sound while making the opening element more visibly like Finn.
This spelling is modern and style-led rather than traditional in its own right. It belongs to the broader trend of refreshing older Celtic names through spelling tweaks.