Descendant of Niall; champion or cloud
Oneal is an Americanized surname-turned-first-name derived from the Irish O'Neill. It traces back to the Gaelic name Niall, which has debated meanings including 'champion', 'cloud', or 'passionate'.
About 6 boys were named Oneal in 2025.
US births per 5-year period, 1990–present (SSA data).
American character actor known for Deep Impact
Public figure and cosmetic practitioner
