Dewitt is a distinctive boys' name in United States, ranking #7633 in 2015 with 10 recorded births. The name reached its all-time peak in 2001 with 15 births ranking #4951. Since 1996, the popularity has decreased by 16.7%. In 2015, approximately 1 in every 191,626 boys born was named Dewitt. FALLING Recent data shows the name is currently falling.