Last name Krishnamachari (Krishnamachari 
) , all over the world, is a rare surname. The cognomen Krishnamachari is characteristic of United Arab Emirates, where it is a rare surname, Singapore, and India, where it is a very rare surname. Not in comparison with a country's population, the name is most common in India, the United States, and United Arab Emirates. Also, Krishnamachari is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Krishnamachari | Singapore, India, France, United Arab Emirates, United States |
| tenparai raghavachari krishnamachari (b. 1937) |
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| sadagopa i. krishnamachari (b. 1944) |
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| bhaskar krishnamachari Professor, University of Southern California, LA (b. 1977) |
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| shantha krishnamachari Ed.D. Columbia University 1988 |
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| bhuma krishnamachari researcher (ORCID 0000-0001-9227-7979) |
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| rajesh tembarai krishnamachari Ph.D. University of Colorado at Boulder 2011 |
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| santhana krishnamachari Ph.D. 1995 |
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