Cognomen Postránecká (Postránecká 
) , around the world, is a very rare family name. The surname Postránecká is habitual in Eastern Europe, particularly Czechia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Postránecká | Czechia |
| marie postránecká CZ (b. 1902) |
|
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| kateřina postránecká CZ (b. 1979) |
|
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| barbora postránecká (b. 1983) |
|