Moira is a distinctive girls' name in United States, ranking #1355 in 1999 with 131 recorded births. The name reached its all-time peak in 1997 with 133 births ranking #1311. Since 1996, the popularity has increased by 19.1%. In 1999, approximately 1 in every 13,540 girls born was named Moira. FALLING Recent data shows the name is currently falling.