Tisa is a Slovene feminine given name with two possible origins. It may derive directly from the Slovene word tisa, meaning "yew tree" — a coniferous tree historically associated with longevity and resilience in European folklore. Alternatively, the name may be inspired by the Tisa River (known internationally as the Tisza or Theiss), one of the major rivers of Central and Eastern Europe. The river was revered as "the most Hungarian river" for its historical role within the Kingdom of Hungary, but it also flows through Ukraine, Romania, Slovakia, and Serbia, giving Tisa a broad Eastern European geographical resonance.