Millicent is a moderately popular girls' name in England & Wales, ranking #273 in 1998 with 143 recorded births. The name reached its all-time peak in 1998 with 143 births ranking #273. Since 1996, the popularity has increased by 116.7%. In 1998, approximately 1 in every 2,022 girls born was named Millicent. RISING Recent data shows the name is currently rising.