Tsibar Isle is a protected area in Bulgaria, with an area of 101.48 hectares. It includes an unoccupied territory because the reserve is located on the island Tsibar of the Danube, in the village of Dolni Țibăr.
The protected area was declared on 10 April 2007 in order to protect the habitat for nesting, wintering and resting during migration of the protected bird species – white swallows, oyster Catcher, Pelican, mixed colony of herons and others. It has an area of 101.48 hectares.