Rennick is a distinctive boys' name in United States, ranking #5561 in 2025 with 17 recorded births. This places Rennick in the top 40% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2024 with 51 births ranking #2616. In 2025, approximately 1 in every 100,475 boys born was named Rennick. STABLE Recent data shows the name is currently stable.