Surname Piyatissa (Piyatissa 
) , around the globe, is quite a rare family name. The surname Piyatissa is habitual in Sri Lanka, where it is quite a rare surname, New Zealand, where it is a very rare surname, and Australia. In absolute terms, it is the most numerous in Sri Lanka, Australia, and the United States. Very seldom, Piyatissa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Piyatissa | Australia, Sri Lanka, United Kingdom, United States, New Zealand |
| nimal piyatissa Sri Lankan politician (b. 1968) |
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| l. g. wasantha piyatissa Sri Lankan politician, LK |
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