Clifford is a distinctive boys' name in United States, ranking #938 in 2003 with 175 recorded births. The name reached its all-time peak in 1996 with 356 births ranking #538. Since 1996, the popularity has decreased by 50.8%. In 2003, approximately 1 in every 11,287 boys born was named Clifford. RISING Recent data shows the name is currently rising.