Sinead is a distinctive girls' name in United States, ranking #10458 in 2018 with 10 recorded births. The name reached its all-time peak in 1997 with 44 births ranking #2817. Since 1996, the popularity has decreased by 73.7%. In 2018, approximately 1 in every 170,042 girls born was named Sinead. STABLE Recent data shows the name is currently stable.