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All over the world, Painstaking (อุตสาหะ , Painstaking, เพียรกำแหง) is a very rare predominantly boy's, but very infrequently female given name. The given name Painstaking is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare primarily male, but very seldom female name. Much more frequently, Painstaking is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| เพียรสนอง, อุตสาหะ | Thailand |
ทำเพียร, เพียร, เพียรผาสุก, and เพียรวิชา