Moira is a distinctive girls' name in United States, ranking #1401 in 1998 with 123 recorded births. The name reached its all-time peak in 1997 with 133 births ranking #1311. Since 1996, the popularity has increased by 11.8%. In 1998, approximately 1 in every 14,365 girls born was named Moira. FALLING Recent data shows the name is currently falling.