Modesta Victoria is a passenger ship which travels on the Nahuel Huapi Lake inside the National Park of the same name in Río Negro, Argentina. She was built in 1937 in the Dutch shipyard , and launched to the lake on 12 October 1938. In 1939, she began operations under National Parks Administration. Since 1969, she is owned by the tourism operator Turisur. She is named after a former vessel, Modesta de O'Connor which, under command of Lieutenant , became in 1883 the first vessel to enter the Nahuel Huapi Lake from the Atlantic Ocean, through the Limay River.