The name Sula is a truncated variant of ancient Slavic double-root names, such as Sulimir, Sulirad, or names of the type Samosul. The main part -sul- means 'better, stronger, more capable' or may reflect the idea of 'to promise,' 'to foresee.' The earliest records of the name Sula come from the territory of Eastern Slovakia. For example, in 1221, it was mentioned: "pristaldo Sula devilla Cheb" - the Zemplin county. Additionally, the name of the Ukrainian village Sulyin, located near Stará Ľubovňa in Prešov Region, is mentioned in 1600. In Poland, the names Suła, Sul, Suł have been recorded since the 12th-13th centuries.