Cognomen Rajasekhar (Rajasekhar 
) , all over the world, is quite a common family name. The surname Rajasekhar is habitual in Western Asia, particularly Kuwait, where it is quite a rare surname, Qatar, and United Arab Emirates, where it is a rare surname. In absolute terms, it is commonest in India, the United States, and Kenya. More prevalently, Rajasekhar is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Rajasekhar | United Arab Emirates, Kenya, Kuwait, United States, India |
| srinitya rajasekhar researcher |
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| r. d. rajasekhar Indian cinematographer, IN |
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| pradeep rajasekhar researcher |
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Raj, Yadav, Mekala, Seelam, Sekhar, Areddy, Ambati, Challa, Dasari, Gaddam, Vadde, Gajula, Sunkara, Bandaru, Battula, Bathula, Kandula, Venkata, Chowdary, Cherukuri, Pasupuleti, Talari, Devarapalli, Nakka, Thota, Rao, Babu, Boya, Kota, Raja, Raju, Goli, Goud, Naik, Naidu, Arava, Bandi, Boddu, Katta, Konda, Kolli, Palli, Reddy, Golla, Lanka, Avula, and Jonnalagadda