Sinead is a distinctive girls' name in England & Wales, ranking #1314 in 2018 with 25 recorded births. The name reached its all-time peak in 2003 with 312 births ranking #154. Since 1996, the popularity has decreased by 87.6%. In 2018, approximately 1 in every 11,531 girls born was named Sinead. FALLING Recent data shows the name is currently falling.