Knox is a moderately popular boys' name in United States, ranking #208 in 2023 with 1,781 recorded births. The name reached its all-time peak in 2022 with 1,900 births ranking #199. Since 1996, the popularity has increased by 10,376.5%. In 2023, approximately 1 in every 959 boys born was named Knox. FALLING Recent data shows the name is currently falling.