Cognomen Štastný (Štastný 
) , worldwide, is a very rare family name. The cognomen Štastný is habitual in Eastern Europe, particularly Czechia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Štastný | Czechia |
| mathias štastný (1794-1866) (b. 1794) |
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| bedřich štastný holocaust victim, b. 1876-03-27, CZ (b. 1876) |
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| jan štastný holocaust victim, b. 1882-04-11, CZ (b. 1882) |
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| hugo štastný holocaust victim, b. 1882-02-04, CZ (b. 1882) |
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| rudolf štastný holocaust victim, b. 1883-02-06, CZ (b. 1883) |
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| karel štastný holocaust victim, b. 1887-02-11, CZ (b. 1887) |
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| zdenko štastný holocaust victim, b. 1924-10-05, CZ (b. 1924) |
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| kurt štastný holocaust victim, b. 1926-04-05, CZ (b. 1926) |
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