Family name Todhanakasem (Todhanakasem 
) , in the world, is a very rare last name. The cognomen Todhanakasem is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Todhanakasem | United States, Thailand |
| tatsaporn todhanakasem researcher (ORCID 0000-0003-1161-4676) |
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| tatsaporn todhanakasem researcher ORCID 0000-0002-3059-2962 |
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Ms, Pathiya, Professor, Thippaporn, and Tatsanaporn