Dennys is a distinctive boys' name in United States, ranking #4845 in 2000 with 15 recorded births. The name reached its all-time peak in 1998 with 20 births ranking #3616. Since 1996, the popularity has increased by 25.0%. In 2000, approximately 1 in every 130,929 boys born was named Dennys. FALLING Recent data shows the name is currently falling.