Onyx is a moderately popular boys' name in United States, ranking #365 in 2025 with 881 recorded births. The name reached its all-time peak in 2023 with 1,077 births ranking #307. Since 1996, the popularity has increased by 6,676.9%. In 2025, approximately 1 in every 1,939 boys born was named Onyx. FALLING Recent data shows the name is currently falling.
Onyx is a modern word name taken from the dark gemstone. It feels sleek, bold, and contemporary rather than traditional.
As a given name, Onyx is a recent adoption rather than a long historical personal name. Its rise reflects the popularity of gemstone and word-inspired naming.