Bay is a distinctive girls' name in United States, ranking #10411 in 2021 with 9 recorded births. The name reached its all-time peak in 2014 with 75 births ranking #2419. Since 1996, the popularity has increased by 80.0%. In 2021, approximately 1 in every 182,190 girls born was named Bay. FALLING Recent data shows the name is currently falling.