Via Donau (sometimes stylized as viadonau) is a subsidiary of the Austrian Ministry for Transport, Innovation, and Technology [needs update] (BMVIT) tasked with the preservation and development of the Danube waterway.

[1] Field office: Locks on the Danube: Infrastructure management Via Donau is tasked with the maintenance of riverbanks and bank constructions, the upkeep of shipping routes, and the current measurement and appropriation of hydrographic and hydrologic data.

Via Donau is also responsible for the current largest flood protection project on the March and lower Thaya rivers.

In addition, Via Donau supports the implementation of River Information Services in the entire Danube region.

The NAP was given substantial support during its development by Via Donau, and defines many aspects of future Austrian shipping policy.48°13′57″N 16°24′50″E / 48.2326°N 16.4138°E / 48.2326; 16.4138