Knightley is a distinctive girls' name in United States, ranking #10820 in 2022 with 9 recorded births. This places Knightley in the bottom 39% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2021 with 13 births ranking #8277. In 2022, approximately 1 in every 182,085 girls born was named Knightley. FALLING Recent data shows the name is currently falling.