Family name ديال (Dayal 
, Dial 
, ديال 
) , globally, is a widespread cognomen. The family name ديال is characteristic of Fiji, where it is a common surname, India, where it is quite a common surname, and Trinidad and Tobago (explore the name in all countries). Measured by absolute frequency, the name is most common in India, the United States, and Senegal. Very seldom, ديال is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dayal | Bangladesh, Philippines, United States, India, Fiji |
| Dial | Philippines, Senegal, United States, India, Saudi Arabia |
| ديال | Iran, Morocco, Iraq, Yemen, Palestinian Territory |