Denny is a distinctive boys' name in United States, ranking #1493 in 1999 with 76 recorded births. The name reached its all-time peak in 1997 with 98 births ranking #1207. Since 1996, the popularity has decreased by 21.6%. In 1999, approximately 1 in every 25,264 boys born was named Denny. FALLING Recent data shows the name is currently falling.