Clifford is a distinctive boys' name in United States, ranking #1242 in 2009 with 144 recorded births. The name reached its all-time peak in 1996 with 356 births ranking #538. Since 1996, the popularity has decreased by 59.6%. In 2009, approximately 1 in every 13,773 boys born was named Clifford. RISING Recent data shows the name is currently rising.