Throughout the world, Rathika (Rathika 
) is quite a rare female first name. The forename Rathika is habitual in Sri Lanka, where it is quite a rare feminine name, Kuwait, where it is a rare female name, and Singapore, where it is a rare unisex name. Measured by absolute frequency, this name is the most popular in India, Sri Lanka, and Malaysia. Much less frequently, Rathika is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rathika | India, Indonesia, Sri Lanka, Malaysia, Saudi Arabia |
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rathika sitsabaiesan Canadian politician, CA (b. 1981) |
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| rathika kandasamy researcher (ORCID 0000-0002-5415-158X) |
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| rathika damodara shenoy researcher (ORCID 0000-0001-7518-3604) |
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| rathika krishnasamy researcher ORCID ID = 0000-0001-6974-7880 |
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Raj, Mahadeva, Arumugam, Chandren, Krishnan, Elumalai, Yeamalley, Murugesan, Sivakumar, Kandasamy, Ganesan, Rajendran, Egambaram, Srinivasan, Subramanian, Subramaniam, Amaranathan, Karthikeyan, Rethinasamy, Harichandra, Balakrishnan, Narayanan, Ganasan, Senthil, Ramesh, Roy, Das, Mani, Saha, Siva, Raja, Ravi, Devi, Kumar, Rajan, Rajah, Rathi, Ghosh, Mandal, Mondal, Mendis, Shetty, Suresh, Barman, Kannan, Kumari, Kanagaratnam, and Radhakrishnan