Kieran is a distinctive girls' name in United States, ranking #9184 in 2025 with 11 recorded births. This places Kieran in the bottom 47% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2007 with 77 births ranking #2447. Since 1996, the popularity has decreased by 73.8%. In 2025, approximately 1 in every 146,115 girls born was named Kieran. FALLING Recent data shows the name is currently falling.
Kieran is an Irish name usually explained as "little dark one". It has a graceful, well-balanced sound and remains one of the most approachable Celtic classics.
The name has saintly and historical roots in Ireland and later spread widely through the English-speaking world. Its appeal comes from sounding distinctly Irish without being difficult or unfamiliar.