Island of Šarengrad (Croatian: Šarengradska ada, Serbian: Шаренградска ада / Šarengradska ada) is a Danube river island situated close to the village of Šarengrad in Croatia. The island was formed in 1909 with the construction of the Mohovo-Šarengrad canal.

During the Socialist Federal Republic of Yugoslavia the island was part of the Socialist Republic of Croatia. During the Croatian War of Independence, Yugoslav People's Army and Serbian militia occupied the island.^{[citation needed]}

It was the opinion of the Badinter Arbitration Committee that the borders between republics should become the borders between the countries, so Island of Šarengrad had officially become the territory of the Republic of Croatia, even if it was under Serbian occupation at the time.

In 1998 by a Erdut Agreement, Eastern Slavonia, Baranja and Western Syrmia was reintegrated with Croatia, but the Island of Šarengrad together with Island of Vukovar has stayed under Serbian military occupation.^{[citation needed]}

In 2002 the Serbian army opened fire from the island on the president of the Vukovar-Syrmia County, Nikola Safer, and his escort which included four children in time when he was going for a meeting with his colleague from Serbia. This was despite the party having had formal consent from Serbian officials.

Šarengrad is a village in Croatia. Village is located in Syrmia region, on Fruška Gora slopes, next to the Danube river. Together with villages of Bapska and Mohovo, it is part of Ilok municipality. Today, the village contains approximately 600 people, the majority of which are Croats.

Coordinates: 45°13′00″N 19°22′00″E / 45.216667°N 19.366667°E / 45.216667; 19.366667