Krosby is a distinctive boys' name in United States, ranking #6837 in 2011 with 12 recorded births. This places Krosby in the top 48% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 16 births ranking #5637. In 2011, approximately 1 in every 158,249 boys born was named Krosby. RISING Recent data shows the name is currently rising.