Clifford is a distinctive boys' name in United States, ranking #925 in 2005 with 190 recorded births. The name reached its all-time peak in 1996 with 356 births ranking #538. Since 1996, the popularity has decreased by 46.6%. In 2005, approximately 1 in every 10,511 boys born was named Clifford. RISING Recent data shows the name is currently rising.