Rudolf is a distinctive boys' name in United States, ranking #9593 in 2007 with 8 recorded births. The name reached its all-time peak in 1998 with 14 births ranking #4824. Since 1996, the popularity has decreased by 20.0%. In 2007, approximately 1 in every 259,404 boys born was named Rudolf. FALLING Recent data shows the name is currently falling.