Oniel is a masculine given name of Irish origin that means "champion" or "passionate". Those named Oniel are often described as confident, ambitious, and determined individuals who strive for success in all areas of their life. They have a strong sense of justice and fairness, and are always willing to stand up for what they believe in. Oniels are known for their leadership qualities and ability to inspire others to reach their full potential. Overall, those with the name Oniel are seen as charismatic, strong-willed, and full of passion for life.