Cognomen สัญญากิจ (สัญญากิจ 
) , worldwide, is a rare family name. The surname สัญญากิจ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, สัญญากิจ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สัญญากิจ | Thailand |