Rudolf is a distinctive boys' name in United States, ranking #11912 in 2010 with 6 recorded births. The name reached its all-time peak in 1998 with 14 births ranking #4824. Since 1996, the popularity has decreased by 40.0%. In 2010, approximately 1 in every 319,735 boys born was named Rudolf. FALLING Recent data shows the name is currently falling.