Denny is a distinctive boys' name in United States, ranking #2535 in 2009 with 50 recorded births. The name reached its all-time peak in 1997 with 98 births ranking #1207. Since 1996, the popularity has decreased by 48.5%. In 2009, approximately 1 in every 39,666 boys born was named Denny. FALLING Recent data shows the name is currently falling.