Sincerity is a distinctive girls' name in United States, ranking #17292 in 2024 with 5 recorded births. This places Sincerity in the bottom 2% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 9 births ranking #11308. In 2024, approximately 1 in every 322,638 girls born was named Sincerity. RISING Recent data shows the name is currently rising.