Clifford is a distinctive boys' name in United States, ranking #826 in 2004 with 215 recorded births. The name reached its all-time peak in 1996 with 356 births ranking #538. Since 1996, the popularity has decreased by 39.6%. In 2004, approximately 1 in every 9,232 boys born was named Clifford. RISING Recent data shows the name is currently rising.