Renny is a distinctive boys' name in United States, ranking #9905 in 2005 with 7 recorded births. This places Renny in the bottom 26% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 11 births ranking #6223. In 2005, approximately 1 in every 285,307 boys born was named Renny. FALLING Recent data shows the name is currently falling.