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Surname ประสิทธ (Prasit , ประสิทธ ) , all around the world, is quite a rare last name. The last name ประสิทธ is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname, Malaysia, where it is a rare surname, and Singapore, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Thailand, Malaysia, and China. Much more prevalently, ประสิทธ is the forename as well as the last name.
VARIANT | COUNTRY |
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Prasit | Thailand, Indonesia, India, United States, Nepal |
ประสิทธ | Thailand |