Rob is a distinctive boys' name in United States, ranking #13784 in 2016 with 5 recorded births. This places Rob in the bottom 3% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1996 with 19 births ranking #3646. Since 1996, the popularity has decreased by 73.7%. In 2016, approximately 1 in every 379,442 boys born was named Rob. FALLING Recent data shows the name is currently falling.