Denny is a distinctive boys' name in United States, ranking #1702 in 2001 with 68 recorded births. The name reached its all-time peak in 1997 with 98 births ranking #1207. Since 1996, the popularity has decreased by 29.9%. In 2001, approximately 1 in every 28,571 boys born was named Denny. FALLING Recent data shows the name is currently falling.