The Austrian Science Fund (German: Fonds zur Förderung der wissenschaftlichen Forschung, FWF) is the most important Austrian funding organization for basic research.

The FWF supports research in science, engineering, and the humanities through a large variety of grant programmes, prizes and by funding infrastructure.

The self-governed organization is based in Vienna and financed by the Austrian federal government.

In September 2023 president Christof Gattringer voiced funding concerns: a three year budget consensus previously reached with the Ministry of Education is lacking confirmation by the Ministry of Finance despite continuing high inflation in Austria.

In recent years, the Austrian Science Fund provides growing support for the publication of articles and monographs in the open access format.