Dennys is a distinctive boys' name in United States, ranking #8234 in 2011 with 9 recorded births. The name reached its all-time peak in 1998 with 20 births ranking #3616. Since 1996, the popularity has decreased by 25.0%. In 2011, approximately 1 in every 210,999 boys born was named Dennys. FALLING Recent data shows the name is currently falling.