Key is a distinctive boys' name in United States, ranking #13324 in 2017 with 5 recorded births. The name reached its all-time peak in 1997 with 8 births ranking #6973. Since 1996, the popularity has decreased by 28.6%. In 2017, approximately 1 in every 370,063 boys born was named Key. RISING Recent data shows the name is currently rising.