Cognomen Rosayro (Rosayro 
) , all over the world, is a rare surname. The family name Rosayro is characteristic of Sri Lanka, where it is quite a rare surname, Australia, where it is a very rare surname, and Mexico, where it is an extremely rare surname. Very seldom, Rosayro is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosayro | Mexico, Australia, United States, Sri Lanka, Philippines |
| vicente do rosayro Roman Catholic bishop (b. 1770) |
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|
neil rosayro Sri Lankan admiral |
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