Cognomen Smoak (Smoak 
, سموك, スモーク) , all around the world, is quite a rare surname. The surname Smoak is habitual in the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Myanmar. In absolute terms, it most frequently occurs in the United States, Myanmar, and Canada.
| VARIANT | COUNTRY |
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| Smoak | Canada, Myanmar, United States, United Kingdom, Venezuela |
| william wightman smoak (b. 1877) |
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| marion hartzog smoak American politician, US (b. 1916) |
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| gerald c. smoak American politician (1930-2018), US (b. 1930) |
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| jim smoak American bluegrass musician, US (b. 1934) |
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justin smoak American baseball player, US (b. 1986) |
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| john richard smoak, jr. American judge, US (b. 1943) |
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| gregory e. smoak (b. 1962) |
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| jeremy daniel smoak lecturer in Israelite Religions (b. 1975) |
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| randolph d. smoak, jr. American surgeon, US |
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| joseph m smoak researcher |
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| craig smoak college basketball player (1977–1978) North Texas |
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| bonnie l smoak |
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