Sir is a distinctive boys' name in United States, ranking #2745 in 2002 with 35 recorded births. This places Sir in the top 22% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2021 with 123 births ranking #1466. Since 1996, the popularity has increased by 84.2%. In 2002, approximately 1 in every 55,471 boys born was named Sir. FALLING Recent data shows the name is currently falling.