Brook is a distinctive girls' name in England & Wales, ranking #1072 in 2004 with 22 recorded births. The name reached its all-time peak in 2007 with 30 births ranking #987. Since 1996, the popularity has increased by 340.0%. In 2004, approximately 1 in every 12,993 girls born was named Brook. STABLE Recent data shows the name is currently stable.