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Last name Prajakchai (Prajakchai ) , across the world, is an extremely rare cognomen. Much more prevalently, Prajakchai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Prajakchai | Thailand |
Malai, Rodjam, Saenglamloed, Sawangphet, and Moonlasartsathorn