Fillgraderstiege, Art Nouveau staircase in Mariahilf, Vienna, Austria.

Fillgraderstiege is an Art Nouveau staircase in Mariahilf, built 1905–1907 to designs by Max Hegele, linking Fillgradergasse and Theobaldgasse. Two flights of grey rusticated stone rise to a central landing, where a rectangular pillar carved with a head carries a decorative lamp. Below the landing, a round-arched doorway and two flanking round windows are closed by green metal grilles, and green railings with curved patterns line the stairs.

Max Hegele, a student of Victor Luntz and Carl Hasenauer, designed the staircase, which was built from 1905 to 1907 in Art Nouveau style to link Fillgradergasse and Theobaldgasse. It was named after Marie Anna Fillgrader (1763–1831), a bell-founder's widow who did charitable work in the area. One flight was closed in 1981 after structural damage, and the whole structure was restored from 1982 to 1984.

The staircase displays the early 1900s Viennese taste for flowing lines and curved forms visible throughout the railings and ornamental details. This approach to design was typical of the era and still defines the character of the neighborhood today.

The staircase is open to the public and connects two streets, making it a practical shortcut through the district. The steps are relatively narrow and require careful footing, especially in wet weather.

A renovation in the 1980s brought a cafe and art gallery into an unused interior space within the staircase. These additions give the structure a dual purpose beyond its role as a simple passage between streets.