Cognomen Thilakaratne (Thilakaratne 
) , globally, is quite a common family name. The last name Thilakaratne is characteristic of Sri Lanka, where it is quite a common surname, United Arab Emirates, where it is a rare surname, and Australia. Much less frequently, Thilakaratne is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Thilakaratne | United Arab Emirates, Sri Lanka, Australia, United States, Thailand |
| thilakaratne withanachchi Sri Lankan politician, LK |
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| rajeeva thilakaratne researcher |
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| sudeera thilakaratne Sri Lankan cricketer |
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Mr, Athula, Chamil, Buddhi, Kumara, Pubudu, Ragith, Dilini, Gamini, Linton, Janith, Thilak, Nipuni, Hasala, Vijith, Indika, Melanie, Sachini, Sujatha, Avishka, Chamila, Bindiya, Ananda, Sugath, Shyama, Shahen, Bua, Erik, Sunil, Anura, Aruna, Asini, Ranil, Ravin, Ruwan, Dewmi, Kavindu, Dihan, Nimal, Nuwan, Hiran, Vinoj, Isuru, Udara, Udesh, Mithun, Mihiri, Sadana, Gayan, and Krishna