My light or descendant of Niall
The name Oniel is primarily considered a variant of O'Neil or O'Neal, an Irish surname meaning descendant of Niall. It is also frequently used in Spanish-speaking and Caribbean communities as a phonetic variant of O'neil or potentially linked to the Hebrew name Uriel, meaning God is my light. Its usage as a first name is relatively modern and rare in the United States.
Less common today
Oniel isn't in the latest US Top 1000. It last peaked at #4,486 in 1993.
Jamaican professional soccer player
Former NFL offensive lineman
US births per 5-year period, 1990βpresent (SSA data).