Cosette is a distinctive girls' name in United States, ranking #1993 in 2022 with 98 recorded births. The name reached its all-time peak in 2015 with 141 births ranking #1554. Since 1996, the popularity has increased by 172.2%. In 2022, approximately 1 in every 16,722 girls born was named Cosette. STABLE Recent data shows the name is currently stable.