The surname Sotka (Cyrillic: Сотка) is an Eastern European surname found in Finland, Russia, Belarus, Ukraine, Poland, Hungary, Slovakia and Austria.
The surname Sotka is of Slavic origin, specifically from the regions of modern-day Poland and Ukraine. It is believed to have emerged in the 14th century, derived from the Old East Slavic word "sotka," which referred to a military unit or squad consisting of around 100 soldiers.