The name Nyx is a boy's name of Greek origin meaning "night".

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Nyx is the name of the Greek goddess of the night, and while it does lean feminine in the US, 27 boys did receive the name in a recent year compared to 69 girls. 
 
Short, snappy, and distinctive in appearance, Nyx may appeal as an alternative to Knox, Nicholas, Onyx, Lennox, and Phoenix but also sits outside the Top 1000.

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The name Nyx peaked for boys at #4015 in 2025. Nyx is occasionally used for girls in 2025.

The name Nyx is a girl's name of Greek origin meaning "night".

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In Greek mythology, Nyx was a powerful goddess and the embodiment of the night, giving this name a dark yet mystical feel. She is often depicted as one of the first deities, an offspring of Chaos who appears in black robes and whom even Zeus fears to anger.
 
Similar in sound to Nicks (or Nicky) and to Onyx, Phoenix, Lennyx, Pixie, and Trixie, some may associate it too strongly with the word nix (meaning "nothing", "refuse" or "put an end to"), or to the make-up brand, Nyx. It was nevertheless chosen for nearly 70 girls (and 30 boys) in the US in a recent year.

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The name Nyx peaked for girls at #2243 in 2022. The name is most popular in Washington, Pennsylvania, and Ohio. Nyx is occasionally used for boys in 2025.

Year	US rank	Births	Per million
2014	—	0	0
2015	—	0	0
2016	—	0	0
2017	—	0	0
2018	—	0	0
2019	—	0	0
2020	—	0	0
2021	—	0	0
2022	#4,260	25	14.3
2023	#4,301	25	14.6
2024	#4,144	26	15.1
2025	#4,015	27	15.8

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