Delaney is a moderately popular girls' name in United States, ranking #258 in 1997 with 1,120 recorded births. The name reached its all-time peak in 2004 with 2,002 births ranking #169. In 1997, approximately 1 in every 1,554 girls born was named Delaney. STABLE Recent data shows the name is currently stable.
Delaney comes from a surname with both English and Irish routes. In baby-name use it has the polished, surname-style feel that many modern parents like.
Because the source points to more than one surname origin, Delaney is best explained through that broader surname background rather than by pinning it to one narrow meaning. Its given-name use is modern compared with its older family-name history.