Renwick is a distinctive boys' name in United States, ranking #13815 in 2017 with 5 recorded births. The name reached its all-time peak in 1996 with 7 births ranking #7791. Since 1996, the popularity has decreased by 28.6%. In 2017, approximately 1 in every 370,063 boys born was named Renwick. FALLING Recent data shows the name is currently falling.