Bay is a distinctive girls' name in United States, ranking #12106 in 2025 with 7 recorded births. The name reached its all-time peak in 2014 with 75 births ranking #2419. Since 1996, the popularity has increased by 40.0%. In 2025, approximately 1 in every 229,610 girls born was named Bay. FALLING Recent data shows the name is currently falling.