Throughout the world, Shailen (Shailen 
) is quite a common masculine forename. The given name Shailen is habitual in Mauritius, where it is quite a rare masculine name, Fiji, and India, where it is a rare boy's name. Measured by absolute frequency, the name is most common in India, Bangladesh, and Mauritius.
| VARIANT | COUNTRY |
|---|---|
| Shailen | Bangladesh, Nepal, India, Fiji, Mauritius |
| shailen hiralal desai IN (b. 1921) |
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| shailen ramdoo GB (b. 1966) |
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| shailen vandeyar Entrepreneur, NZ |
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| shailen sutaria researcher |
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| shailen gandabhai researcher |
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| shailen bhatt |
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De, Ghosh, Mandal, Mahato, Mondal, Mistry, Sardar, Sarkar, Sharma, Barman, Biswas, Naskar, Naidoo, Hansda, Halder, Haldar, Debnath, Adhikari, Banerjee, Karmakar, Pramanik, Popatlal, Gupta, Dalui, Desai, Patel, Bag, Pal, Ray, Roy, Das, Maji, Shah, Amin, Guin, Tudu, Debbarma, Mardi, Majhi, Mehta, Murmu, Singh, Soren, Bagdi, Bauri, Kumar, Kisku, Patra, Malik, and Kshetrapal