Throughout the world, Jayanath (Jayanath 
) is a common male first name. The first name Jayanath is habitual in Sri Lanka, where it is quite a rare boy's name, India, and Qatar, where it is a rare male name. In absolute terms, it is commonest in India, Sri Lanka, and United Arab Emirates. Very seldom, Jayanath is the last name as well as the forename.
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| Jayanath | United Arab Emirates, Indonesia, India, Saudi Arabia, Sri Lanka |
| jayanath colombage Sri Lankan admiral, LK (b. 1957) |
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| jayanath ranaweera Master of Architecture, University of Washington |
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| jayanath ananda researcher |
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| jayanath lokuketagodage Sri Lankan Army officer and diplomat |
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Sah, Mandal, Manjhi, Mahato, Mehata, Mishra, Mistri, Sahani, Sharma, Baitha, Bhagat, Pandit, Pandey, Paswan, Prasad, Thakur, Tivari, Tiwari, Mahanta, Mukhiya, Chauhan, Pasavan, Yadav, Gupta, Ravat, Pande, Saw, Pal, Ram, Ray, Rai, Roy, Das, Jha, Saha, Sahu, Fernando, Sada, Raut, Dube, Giri, Naik, Mahto, Sahni, Singh, Silva, Kumar, Patel, Sinh, and Chaudhari