Chelsea is a highly popular girls' name in England & Wales, ranking #43 in 1999 with 1,261 recorded births. The name reached its all-time peak in 1996 with 1,735 births ranking #34. Since 1996, the popularity has decreased by 27.3%. In 1999, approximately 1 in every 223 girls born was named Chelsea. STABLE Recent data shows the name is currently stable.