Knox is a distinctive girls' name in United States, ranking #8121 in 2025 with 13 recorded births. The name reached its all-time peak in 2022 with 29 births ranking #4728. In 2025, approximately 1 in every 123,636 girls born was named Knox. FALLING Recent data shows the name is currently falling.
Knox is a sharp Scottish surname-style name meaning "round hill". Its appeal comes from its clean, strong sound much more than from its quiet landscape meaning.
The name moved into modern first-name use through the popularity of compact surname names. It feels confident, contemporary, and slightly rugged.