Surname Siyaguna (Siyaguna 
) , around the globe, is a rare last name. The cognomen Siyaguna is habitual in Sri Lanka, where it is quite a rare surname, Australia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Siyaguna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siyaguna | United States, Australia, Sri Lanka, United Kingdom |
| siyaguna k d m ekanayake researcher |
|