Kelly is a moderately popular girls' name in England & Wales, ranking #328 in 2005 with 124 recorded births. The name reached its all-time peak in 1996 with 789 births ranking #74. Since 1996, the popularity has decreased by 84.3%. In 2005, approximately 1 in every 2,325 girls born was named Kelly. FALLING Recent data shows the name is currently falling.