Sir is a distinctive boys' name in United States, ranking #1743 in 2022 with 96 recorded births. The name reached its all-time peak in 2021 with 123 births ranking #1466. Since 1996, the popularity has increased by 405.3%. In 2022, approximately 1 in every 18,171 boys born was named Sir. FALLING Recent data shows the name is currently falling.