Chelsea is a moderately popular girls' name in England & Wales, ranking #207 in 2009 with 245 recorded births. The name reached its all-time peak in 1996 with 1,735 births ranking #34. Since 1996, the popularity has decreased by 85.9%. In 2009, approximately 1 in every 1,279 girls born was named Chelsea. STABLE Recent data shows the name is currently stable.