Harriett is a distinctive girls' name in England & Wales, ranking #729 in 2005 with 41 recorded births. The name reached its all-time peak in 2017 with 82 births ranking #526. Since 1996, the popularity has increased by 17.1%. In 2005, approximately 1 in every 7,031 girls born was named Harriett. STABLE Recent data shows the name is currently stable.