Sir is a distinctive boys' name in United States, ranking #2292 in 2014 with 58 recorded births. The name reached its all-time peak in 2021 with 123 births ranking #1466. Since 1996, the popularity has increased by 205.3%. In 2014, approximately 1 in every 33,111 boys born was named Sir. FALLING Recent data shows the name is currently falling.