Surname Očenáš (Ocenas 
, Očenáš , Ocsenas 
) , in all the world, is quite a rare last name. The last name Očenáš is habitual in Eastern Europe, particularly Slovakia, where it is quite a common surname, Hungary, where it is quite a rare surname, and Czechia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ocenas | Germany, Czechia, Canada, United States, Slovakia |
| Očenáš | Czechia, Slovakia |
| Ocsenas | Hungary, Canada, United States |
| Ocsenás | Hungary |
| andrej očenáš Slovak composer, SK (b. 1911) |
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| daniel očenáš Slovak astronomer, SK (b. 1949) |
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| peter očenáš researcher (ORCID 0000-0001-9416-0934) |
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| michal očenáš referee, SK |
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