Last name Premarathna (Premarathna 
) , around the world, is quite a common surname. The last name Premarathna is habitual in Sri Lanka, where it is quite a common surname, Qatar, where it is quite a rare surname, and United Arab Emirates. Measured by absolute frequency, it most frequently occurs in Sri Lanka, United Arab Emirates, and Saudi Arabia. Much less frequently, Premarathna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Premarathna | United Arab Emirates, Saudi Arabia, Sri Lanka, Japan, Qatar |
| lasantha wijendra acharige premarathna Ph.D. Simon Fraser University 2018 |
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| galkande arachige iresha chamanthi premarathna Ph.D. Texas Tech University 2017 |
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| sunil premarathna LK |
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Mr, Mahesh, Menuka, Mujtih, Sarath, Samith, Sineth, Suneth, Sumith, Sumudu, Udara, Sudath, Akitha, Achini, Ajitha, Chamil, Bhagya, Kapila, Kosala, Kemila, Kumara, Asanka, Kumudu, Umega, Isuru, Aii, Asha, Upul, Mohan, Saman, Sachi, Sunil, Susil, Supun, Omila, Senal, Amila, Ajith, Kasun, Ruwan, Deepa, Lenin, Nalin, Nelka, Nuwan, Aruna, and Pathum