Family name نيال (Niall 
, Nial , نيال 
) , globally, is a common cognomen. The surname نيال is habitual in India, where it is quite a rare surname, Ireland, and Syria. In absolute terms, it most frequently occurs in India, Sudan, and Syria. Likewise, نيال is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Niall, Nial | Australia, United Kingdom, United States, India, Ireland |
| نيال | Sudan, Turkey, Syria, Palestinian Territory, Iraq |