Rainey is a distinctive boys' name in United States, ranking #13578 in 2014 with 5 recorded births. This places Rainey in the bottom 4% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 9 births ranking #6964. Since 1996, the popularity has decreased by 37.5%. In 2014, approximately 1 in every 384,088 boys born was named Rainey. RISING Recent data shows the name is currently rising.