Mannix is a distinctive boys' name in United States, ranking #11671 in 2001 with 5 recorded births. This places Mannix in the bottom 5% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2010 with 31 births ranking #3505. In 2001, approximately 1 in every 388,566 boys born was named Mannix. RISING Recent data shows the name is currently rising.