Cognomen แสนสุข (แสนสุข 
, Sansuk 
, Saensuk 
) , all around the world, is a common surname. The surname แสนสุข is characteristic of Thailand, where it is quite a common surname, Sweden, where it is a rare surname, and Myanmar, where it is a very rare surname. Much less frequently, แสนสุข is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| แสนสุข | Thailand |
| Sansuk | United States, Thailand, Nigeria, India, Myanmar |
| Saensuk | Sweden, Australia, United States, Thailand |
| Saensook | United States, Singapore, Thailand |
Happy, Saeksuk, Saenab, Saenkasat, Saenmahak, Saenpaseuth, Saensok, Saensookh, Saensouk, Saensuek, Saensug, Saensukh, Saettasook, Sandasuk, Sandsook, Sanosuay, Sanprum, Sanrasook, Sanrasuk, Sansasom, Sansawek, Sansernsuk, Sansmaukr, Sansook, Sansuek, Sansukho, Sansurk, Santesuk, Sanuksan, Sarnsook, Savangsook, Savangsookh, Saweanhsuk, Seansuk, Seansukk, Senesouk, and Unsaensuk
| สุรพล แสนสุข researcher |
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| ปกาศิต แสนสุข Thai footballer, TH (b. 1984) |
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| ปวริศย์ แสนสุข Thai footballer, TH (b. 1987) |
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| มรุต แสนสุข Thai actor, TH (b. 1990) |
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| ปิยะพร แสนสุข |
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| จารุวัฒน์ แสนสุข Thai rower, TH (b. 1996) |
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