Last name Jayakar (Jayakar 
) , all around the world, is quite a rare cognomen. The cognomen Jayakar is habitual in United Arab Emirates, where it is a rare surname, New Zealand, and India. In absolute terms, the name is most common in India, the United States, and United Arab Emirates. Also, Jayakar is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Jayakar | United Kingdom, United Arab Emirates, United States, India, New Zealand |
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mukund ramrao jayakar former Vice-Chancellor of the University of Poona (1873-1959) (b. 1873) |
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| atmaram sadashiv jayakar Indian naturalist, military physician and surgeon (1844-1911), IN (b. 1844) |
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| suresh jayakar tall, lean and Pleasant individual with a ready laugh. (b. 1937) |
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| p. a. jayakar Indian bacteriologist and principal, IN |
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| selwyn s jayakar researcher |
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| s. d. jayakar Ph.D. The Johns Hopkins University |
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| jai p jayakar researcher (ORCID 0000-0003-2265-5430) |
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