Clifford is a distinctive boys' name in United States, ranking #1040 in 2007 with 181 recorded births. The name reached its all-time peak in 1996 with 356 births ranking #538. Since 1996, the popularity has decreased by 49.2%. In 2007, approximately 1 in every 11,465 boys born was named Clifford. RISING Recent data shows the name is currently rising.