Moira is a distinctive girls' name in United States, ranking #1875 in 2007 with 112 recorded births. This places Moira in the top 9% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1997 with 133 births ranking #1311. In 2007, approximately 1 in every 17,165 girls born was named Moira. FALLING Recent data shows the name is currently falling.