Surname Otka (Otka 
) , around the globe, is a rare family name. The last name Otka is characteristic of Poland, where it is a rare surname, Australia, where it is a very rare surname, and Brazil. In absolute terms, it is the most numerous in Poland, Brazil, and the United States. Also, Otka is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Otka | Australia, Brazil, Poland, United States, Czechia |