Callaghan is a distinctive girls' name in United States, ranking #16141 in 2018 with 5 recorded births. This places Callaghan in the bottom 11% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2022 with 15 births ranking #7343. In 2018, approximately 1 in every 340,085 girls born was named Callaghan. RISING Recent data shows the name is currently rising.