Last name Sulliavan (Sulliavan 
) , around the globe, is a very rare family name. The surname Sulliavan is characteristic of New Zealand, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United Kingdom. Not in comparison with a country's population, it is commonest in the United States, Canada, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Sulliavan | Canada, United States, New Zealand, United Kingdom |