Last name Jayawan (Jayawan 
) , across the world, is a rare cognomen. The surname Jayawan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname, Indonesia, and Philippines. Measured by absolute frequency, it is commonest in Indonesia, China, and Thailand. Much less frequently, Jayawan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jayawan | Indonesia, Philippines, China, India, Thailand |
| jayawan h b wijekoon researcher |
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