Sinead is a distinctive girls' name in United States, ranking #8240 in 2017 with 14 recorded births. The name reached its all-time peak in 1997 with 44 births ranking #2817. Since 1996, the popularity has decreased by 63.2%. In 2017, approximately 1 in every 123,277 girls born was named Sinead. STABLE Recent data shows the name is currently stable.