Krosby is a distinctive boys' name in United States, ranking #7908 in 2010 with 10 recorded births. This places Krosby in the bottom 45% 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 2010, approximately 1 in every 191,841 boys born was named Krosby. RISING Recent data shows the name is currently rising.