Denny is a distinctive boys' name in United States, ranking #1207 in 1997 with 98 recorded births. This places Denny in the top 11% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1997 with 98 births ranking #1207. In 1997, approximately 1 in every 19,236 boys born was named Denny. FALLING Recent data shows the name is currently falling.