Cognomen Tran-Nguyen (Tran-Nguyen 
) , worldwide, is a very rare last name. The last name Tran-Nguyen is habitual in Finland, where it is a rare surname, Australia, where it is a very rare surname, and France. Measured by absolute frequency, it is the most numerous in the United States, Australia, and Finland. Parts of the name also exists independently as a last name Tran, and a last name Nguyen.
| VARIANT | COUNTRY |
|---|---|
| Tran-Nguyen | Germany, Australia, Finland, United States, France |
| viet-khoa tran-nguyen researcher |
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| thi k tran-nguyen researcher |
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Mr, Diana, Duyen, Lilly, Jodie, Trinh, Tracy, Emily, Wendy, Quynh, Aleene, Claire, Kristi, Denise, Jesika, Nguyen, Vivian, Yvonne, Anthony, Baotran, Richard, Dominic, Phuoc, Peter, Khanh, Kenny, Ly, Ha, Mai, Anh, Jan, Thi, Mary, Chau, Rose, Diep, Jacklyn, Lien, Jade, Thuy, Tram, Truc, Vinh, Viet, Vimy, Susan, Annie, Cindy, Lynn, and Jeffrey