Cognomen Toomanian (Toomanian 
) , throughout the world, is a very rare family name. The cognomen Toomanian is characteristic of Iran, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States.
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| Toomanian | Iran, Canada, United States |
| hamlet toomanian chess player (b. 1976) |
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| n. toomanian researcher ORCID ID = 0000-0003-3347-7748 |
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| megerdich toomanian Ph.D. University of Southampton 1975 |
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