Surname 宗冈 (宗冈 
) , in the entire world, is a very rare last name. The last name 宗冈 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 宗冈 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 宗冈 | China |