Denny is a distinctive boys' name in United States, ranking #1647 in 1998 with 63 recorded births. The name reached its all-time peak in 1997 with 98 births ranking #1207. Since 1996, the popularity has decreased by 35.1%. In 1998, approximately 1 in every 30,338 boys born was named Denny. FALLING Recent data shows the name is currently falling.