Dennys is a distinctive boys' name in United States, ranking #5133 in 2006 with 17 recorded births. The name reached its all-time peak in 1998 with 20 births ranking #3616. Since 1996, the popularity has increased by 41.7%. In 2006, approximately 1 in every 120,889 boys born was named Dennys. FALLING Recent data shows the name is currently falling.