Chelsea is a moderately popular girls' name in England & Wales, ranking #135 in 2007 with 413 recorded births. The name reached its all-time peak in 1996 with 1,735 births ranking #34. Since 1996, the popularity has decreased by 76.2%. In 2007, approximately 1 in every 741 girls born was named Chelsea. STABLE Recent data shows the name is currently stable.