Keighan is a distinctive boys' name in United States, ranking #10223 in 2018 with 7 recorded births. This places Keighan in the bottom 28% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 18 births ranking #5165. In 2018, approximately 1 in every 259,353 boys born was named Keighan. FALLING Recent data shows the name is currently falling.