Markušica (Serbian Cyrillic: Маркушица,[5] Hungarian: Márkusfalva, German: Sankt Markus) is a village and a municipality in Vukovar-Syrmia County in eastern Croatia.

The landscape of the Markušica Municipality is marked by the Pannonian Basin plains and agricultural fields of wheat, maize, common sunflower and sugar beet.

[8] Colonist settlements of Ada, Gaboš, Križevci, Podrinje, and Šodolovci were established on the territory of the village municipality during the land reform in interwar Yugoslavia.

[9] The modern day Municipality of Markušica was established by the decision of the United States diplomat and at the time Transitional Administrator for Eastern Slavonia, Baranja and Western Sirmium Jacques Paul Klein.

Prior to the decision, the international community expressed concerns over the perceived gerrymandering, disenfranchisement of refugees and minority representation.

[17] Markušica is an underdeveloped municipality which is statistically classified as the First Category Area of Special State Concern by the Government of Croatia.

The village has a unique monument to a female Soviet pilot from the Red Army, who fought against the Nazis and whose plane was shot down here.