Last name Słociński (Słociński 
) , all over the world, is a rare cognomen. The family name Słociński is habitual in Eastern Europe, particularly Poland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Słociński | Poland |
| alfred adam słociński Polish officer (1908-1982), PL (b. 1908) |
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| antoni słociński Polish actor (1925-2018), PL (b. 1925) |
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| marek słociński Polish mathematician, PL |
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| andrzej słociński PL |
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