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Ataman (variants: otaman,[1] wataman, vataman; Russian: атаман; Ukrainian: отаман) was a title of Cossack and haidamak leaders of various kinds. In the Russian Empire, the term was the official title of the supreme military commanders of the Cossack armies. The Ukrainian version of the same word is hetman. Otaman in Ukrainian Cossack forces was a position of a lower rank.
- ^ "Otaman" in The Encyclopedia of Ukraine (in English)