Cognomen พนมยงค์ (พนมยงค์ 
, Phanomyong , Banomyong 
) , all over the world, is a rare family name. The cognomen พนมยงค์ is characteristic of Thailand, where it is a rare surname, and France, where it is an extremely rare surname. Much less frequently, พนมยงค์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phanomyong, Phanumong, พนมยงค์ | Thailand |
| Banomyong | France, Thailand |
Panomyong, and Phanomyongk
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ปรีดี พนมยงค์ Thai prime minister (1900-1983), TH (b. 1900) |
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พูนศุข พนมยงค์ Wife of Prime Minister of Thailand, TH (b. 1913) |
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ปาล พนมยงค์ (b. 1932) |
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ศุขปรีดา พนมยงค์ (b. 1935) |
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| ดุษฎี พนมยงค์ Thai writer, TH (b. 1939) |
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| อรรถกิจ พนมยงค์ Thai politician, TH |
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