Sinead is a distinctive girls' name in United States, ranking #11036 in 2021 with 9 recorded births. The name reached its all-time peak in 1997 with 44 births ranking #2817. Since 1996, the popularity has decreased by 76.3%. In 2021, approximately 1 in every 182,190 girls born was named Sinead. STABLE Recent data shows the name is currently stable.