Last name Marušiak (Marušiak 
) , throughout the world, is a very rare cognomen. The last name Marušiak is habitual in Eastern Europe, particularly Slovakia, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Marušiak | Slovakia |
| petr marušiak SK (b. 1852) |
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| jozef marušiak Slovak translator, SK (b. 1932) |
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| martin marušiak (b. 1931) |
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| juraj marušiak Slovak historian, SK (b. 1970) |
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| marek marušiak Slovak ice hockey player, SK (b. 1990) |
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| marek marušiak SK (b. 1991) |
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