Around the globe, Shanmuga (Shanmuga 
) is quite a rare epicene forename. The given name Shanmuga is characteristic of Singapore, where it is quite a rare principally male, but scarcely feminine name, Oman, where it is quite a rare boy's name, and Qatar. Not in comparison with a country's population, it is the most numerous in India, Singapore, and Saudi Arabia. Much less frequently, Shanmuga is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Shanmuga | United Arab Emirates, Singapore, India, Malaysia, Saudi Arabia |
| shanmuga nadar Indian entrepreneur, chairman of Sivakasi municipality, IN (b. 1903) |
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| shanmuga sozhamannan researcher |
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| shanmuga mudaliar chidambaram Recipient of Shaurya Chakra, IN |
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| shanmuga sozhamannan |
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| shanmuga pandian Indian actor who has worked in Tamil language films (b. 1993) |
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Raj, Indran, Sundari, Sundram, Pandian, Perumal, Prakash, Ganesan, Lakshmi, Vadivel, Vadivu, Sundaram, Arumugam, Bharathi, Pandiyan, Ramasamy, Rethenam, Sundharam, Natarajan, Velayutham, Subramanian, Srinivas, Nathan, Ganesh, Pillai, Rao, Vel, Mani, Babu, Raja, Raju, Velu, Anand, Kumar, Pandi, Prabu, Priya, Rajan, Reddy, Valli, Velan, Sundar, Prasad, Prabhu, Priyan, Priyaa, Karthikeyan, and Kanesalingam