Cognomen Parthasarathy (Parthasarathy 
) , in all the world, is quite a common last name. The last name Parthasarathy is characteristic of United Arab Emirates, where it is quite a rare surname, Cyprus, and Singapore. In absolute terms, it most frequently occurs in India, the United States, and United Arab Emirates. Likewise, Parthasarathy is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Parthasarathy | United Arab Emirates, Malaysia, India, United States, Singapore |
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parthasarathy avula Indian Philosopher, IN (b. 1927) |
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k. r. parthasarathy Indian probabilist, IN (b. 1936) |
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gopalaswami parthasarathy Punda Parthasarathy, IN (b. 1940) |
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| subur parthasarathy Indian educator (b. 1911) |
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| y. g. parthasarathy Indian playwright (b. 1916) |
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| s. v. parthasarathy Vocalist in Carnatic Music (b. 1917) |
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| m. d. parthasarathy (b. 1910) |
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| m.s. parthasarathy Indian film editor (b. 1924) |
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| rangaswami parthasarathy (b. 1915) |
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| rajalakshmi parthasarathy Indian journalist, educationist and social worker, IN (b. 1925) |
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| r. parthasarathy English language Indian poet, translator and art-critic, IN (b. 1934) |
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| vibha parthasarathy Indian educationalist, IN (b. 1940) |
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| k. parthasarathy Umpire, IN (b. 1943) |
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| girija parthasarathy Indian businessperson (born 1947, child of Ramaswamynaidu), IN (b. 1947) |
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| vijayalakshmi parthasarathy Indian businessperson (born 1948, child of Seshadri), IN (b. 1948) |
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