Last name Ilangaratne (Ilangaratne 
) , in all the world, is a rare cognomen. The cognomen Ilangaratne is characteristic of Sri Lanka, where it is quite a rare surname, Australia, where it is a very rare surname, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Ilangaratne | United Kingdom, Sri Lanka, Australia, United States, Canada |
| tamara kumari ilangaratne ceylonese politician (b. 1925) |
|
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| hemish ilangaratne cricketer (born 1987), GB (b. 1987) |
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