Family name Muchnick (Muchnick 
) , globally, is a rare last name. The last name Muchnick is habitual in the United States, where it is a rare surname, Chile, where it is a very rare surname, and Honduras. Measured by absolute frequency, it is commonest in the United States, Chile, and South Africa.
| sam muchnick American wrestling promoter, US (b. 1905) |
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| jacobo muchnick Argentine editor, AR (b. 1907) |
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| isadore h. y. muchnick American politician, US (b. 1908) |
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| david m. muchnick American sociologist (1945-2019) (b. 1945) |
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| steven muchnick American computer scientist, US (b. 1945) |
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| avi muchnick American businessman, US (b. 1979) |
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